ExplainPlease Q&A - Recent questions and answers in Statistics
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Powered by Question2AnswerAnswered: On a placement exam, Rick scored lower than 1210 of the 12,860 students who took the exam. What is Rick percent?
http://www.explainplease.com/143000/placement-exam-rick-scored-lower-students-exam-what-percent?show=186010#a186010
9.40%Statisticshttp://www.explainplease.com/143000/placement-exam-rick-scored-lower-students-exam-what-percent?show=186010#a186010Mon, 03 Sep 2018 14:14:49 +0000what is 48.3+/-12.1
http://www.explainplease.com/181891/what-is-48-3-12-1
what the average ageStatisticshttp://www.explainplease.com/181891/what-is-48-3-12-1Sun, 25 Mar 2018 12:46:56 +0000If log27 =1.431, then the value of log9 is
http://www.explainplease.com/181868/if-log27-1-431-then-the-value-of-log9-is
Statisticshttp://www.explainplease.com/181868/if-log27-1-431-then-the-value-of-log9-isSat, 24 Mar 2018 11:32:27 +0000Answered: what is a example of a stats
http://www.explainplease.com/143008/what-is-a-example-of-a-stats?show=166704#a166704
examples are Analysis of variance,correlation etc.Statisticshttp://www.explainplease.com/143008/what-is-a-example-of-a-stats?show=166704#a166704Sun, 26 Feb 2017 15:03:36 +0000Answered: If I have a task that took me 2 hours and I reduce it by 45 minutes, what is the percentage I have reduced it by
http://www.explainplease.com/79086/have-task-that-hours-reduce-minutes-what-percentage-reduced?show=167764#a167764
You have reduced by 37.5%Statisticshttp://www.explainplease.com/79086/have-task-that-hours-reduce-minutes-what-percentage-reduced?show=167764#a167764Tue, 21 Feb 2017 16:32:28 +0000Answered: 200 increased by 20%
http://www.explainplease.com/163699/200-increased-by-20%25?show=166657#a166657
The answer will be 40.Statisticshttp://www.explainplease.com/163699/200-increased-by-20%25?show=166657#a166657Sat, 18 Feb 2017 10:48:09 +0000How do you spell 543dollars and $.89
http://www.explainplease.com/159102/how-do-you-spell-543dollars-and-%24-89
Statisticshttp://www.explainplease.com/159102/how-do-you-spell-543dollars-and-%24-89Fri, 07 Aug 2015 14:58:24 +0000what is 35% off 10$
http://www.explainplease.com/147696/what-is-35%25-off-10%24
Statisticshttp://www.explainplease.com/147696/what-is-35%25-off-10%24Sun, 21 Dec 2014 12:07:15 +0000In adult men it has ratio of about 60% and adult women, it has a ratio of about 55%.
http://www.explainplease.com/147617/adult-men-has-ratio-about-and-adult-women-has-ratio-about-55%25
Statisticshttp://www.explainplease.com/147617/adult-men-has-ratio-about-and-adult-women-has-ratio-about-55%25Sat, 20 Dec 2014 15:15:37 +0000define standard devation as a value used in statistics
http://www.explainplease.com/141766/define-standard-devation-as-a-value-used-in-statistics
Statisticshttp://www.explainplease.com/141766/define-standard-devation-as-a-value-used-in-statisticsMon, 08 Sep 2014 17:00:16 +0000figure sales tax
http://www.explainplease.com/140396/figure-sales-tax
Statisticshttp://www.explainplease.com/140396/figure-sales-taxWed, 27 Aug 2014 16:06:26 +0000Alicia is7 years old.she is 1 year older than one -eighth the age of her father.how old is Alicia's father?
http://www.explainplease.com/140936/alicia-years-year-older-than-eighth-her-father-alicias-father
Statisticshttp://www.explainplease.com/140936/alicia-years-year-older-than-eighth-her-father-alicias-fatherTue, 26 Aug 2014 23:20:55 +000060 million budget deficit over two years- 1st year will be cut in haft second year will cut the remaining half
http://www.explainplease.com/140518/million-budget-deficit-years-haft-second-will-remaining-half
Statisticshttp://www.explainplease.com/140518/million-budget-deficit-years-haft-second-will-remaining-halfMon, 25 Aug 2014 16:55:11 +000012 runners, resting heart rate of 68.3. best estimate for the mean resting heart rate of all long-distance runners?
http://www.explainplease.com/138677/runners-resting-heart-estimate-resting-heart-distance-runners
12 long distance runners were randomly selected and tested, a mean resting heart rate of 68.3 beats per minutes. Based on sample statistic, what is the best estimate fo the mean resting heart rate for all long-distance runners?Statisticshttp://www.explainplease.com/138677/runners-resting-heart-estimate-resting-heart-distance-runnersThu, 31 Jul 2014 11:50:41 +0000The sum of 64 cakes and x cakes is180 cakes.
http://www.explainplease.com/136896/the-sum-of-64-cakes-and-x-cakes-is180-cakes
Statisticshttp://www.explainplease.com/136896/the-sum-of-64-cakes-and-x-cakes-is180-cakesSun, 01 Jun 2014 22:28:16 +0000$62 per $1000 equals what percent?
http://www.explainplease.com/134917/%2462-per-%241000-equals-what-percent
Statisticshttp://www.explainplease.com/134917/%2462-per-%241000-equals-what-percentFri, 16 May 2014 19:55:15 +0000what are the percentages in a box and whisker plot
http://www.explainplease.com/134656/what-are-the-percentages-in-a-box-and-whisker-plot
Statisticshttp://www.explainplease.com/134656/what-are-the-percentages-in-a-box-and-whisker-plotThu, 15 May 2014 02:09:04 +000046 boxes of hair products,each box has 4 to 8 items in them, how much time should it take to stock them on shelves ?
http://www.explainplease.com/132960/boxes-products-each-items-them-much-should-stock-them-shelves
stocking shelves at a grocery storeStatisticshttp://www.explainplease.com/132960/boxes-products-each-items-them-much-should-stock-them-shelvesSun, 04 May 2014 17:57:01 +0000Answered: The nonparametric equivalent of the dependent-samples t test is the?
http://www.explainplease.com/131257/the-nonparametric-equivalent-the-dependent-samples-test-the?show=131428#a131428
<p style="margin-bottom: 0in">
<span style="color: #000080;"><span lang="zxx"><span style="color: #000000;"><span style="font-style: normal"><span style="text-decoration: none"><span style="background: transparent">Wilcoxon test is the nonparametric equivalent of the dependent sample t test.</span></span></span></span></span></span></p>Statisticshttp://www.explainplease.com/131257/the-nonparametric-equivalent-the-dependent-samples-test-the?show=131428#a131428Wed, 09 Apr 2014 07:35:09 +0000Answered: if the average of six numbers is 10, and five of them are 5, 8, 12, 15, and 17, what is the sixth number?
http://www.explainplease.com/131187/average-six-numbers-and-five-them-are-and-what-the-sixth-number?show=131281#a131281
<p style="margin-bottom: 0in">
<span style="color: #000080;"><span lang="zxx"><span style="text-decoration: none">The average of six numbers is 10</span></span></span></p>
<p style="margin-bottom: 0in">
<span style="color: #000080;"><span lang="zxx"><span style="text-decoration: none">and the numbers are 5, 8, 12, 15, 17</span></span></span></p>
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<span style="color: #000080;"><span style="text-decoration: none"><span lang="zxx">so when this numbers are added and divided with 6 we should get 10</span></span></span></p>
<p style="margin-bottom: 0in">
<span style="color: #000080;"><span style="text-decoration: none"><span lang="zxx">which means, </span></span></span><span style="color: #000080;"><span lang="zxx"><span style="text-decoration: underline;">5+8+12+15+17+x </span></span></span><span style="color: #000080;"><span lang="zxx"><span style="text-decoration: none"> =10</span></span></span></p>
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<span style="color: #000080;"><span style="text-decoration: none"><span lang="zxx"> 6</span></span></span></p>
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<span style="color: #000080;"><span lang="zxx"><span style="text-decoration: none">where x is the sixth number</span></span></span></p>
<p style="margin-bottom: 0in">
<span style="color: #000080;"><span style="text-decoration: none"><span lang="zxx">so</span></span></span><span style="color: #000080;"><span lang="zxx"><span style="text-decoration: underline;"> 57+x </span></span></span><span style="color: #000080;"><span lang="zxx"><i><span style="text-decoration: none"> =</span></i></span></span><span style="color: #000080;"><span lang="zxx"><span style="text-decoration: underline;"><span style="font-style: normal"><span style="font-weight: normal">10</span></span></span></span></span></p>
<p style="margin-bottom: 0in">
<span style="color: #000080;"><span style="text-decoration: none"><span lang="zxx"><span style="font-style: normal">6</span></span></span></span></p>
<p style="margin-bottom: 0in">
<span style="color: #000080;"><span style="text-decoration: underline;"><span lang="zxx"><span style="font-style: normal"><span style="font-weight: normal">57+3</span></span></span></span></span><span style="color: #000080;"><span lang="zxx"><span style="font-style: normal"><span style="text-decoration: none"><span style="font-weight: normal">= 60/6 =10 </span></span></span></span></span></p>
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<span style="color: #000080;"><span style="text-decoration: none"><span lang="zxx"> 6</span></span></span></p>
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<span style="color: #000080;"><span lang="zxx"><span style="text-decoration: none">so the sixth number is 3.</span></span></span></p>Statisticshttp://www.explainplease.com/131187/average-six-numbers-and-five-them-are-and-what-the-sixth-number?show=131281#a131281Tue, 08 Apr 2014 07:37:13 +0000Answered: how many ounces of gold in fort knox?
http://www.explainplease.com/130210/how-many-ounces-of-gold-in-fort-knox?show=130395#a130395
<p style="margin-bottom: 0in">
Each bar weighs 400 troy ounces and entire stockpile weighs 147.3 million troy ounces.</p>Statisticshttp://www.explainplease.com/130210/how-many-ounces-of-gold-in-fort-knox?show=130395#a130395Fri, 04 Apr 2014 09:24:45 +0000what is the normal distribution of 16,24,17,19
http://www.explainplease.com/130259/what-is-the-normal-distribution-of-16-24-17-19
Statisticshttp://www.explainplease.com/130259/what-is-the-normal-distribution-of-16-24-17-19Fri, 04 Apr 2014 05:27:45 +0000Answered: what is the sequence of these numbers 7, 16, 8, 27, 9, ?
http://www.explainplease.com/90470/what-is-the-sequence-of-these-numbers-7-16-8-27-9?show=129555#a129555
<p style="margin-bottom: 0in">
The sequence of the numbers 7, 16, 8, 27, 9 is</p>
<p style="margin-bottom: 0in">
7, 16, 8, 27, 9, 40, 10, 55, 11</p>Statisticshttp://www.explainplease.com/90470/what-is-the-sequence-of-these-numbers-7-16-8-27-9?show=129555#a129555Sat, 29 Mar 2014 13:52:51 +0000Answered: for variables measured at the ordinal level, what does Gamma measure?
http://www.explainplease.com/85668/variables-measured-the-ordinal-level-what-does-gamma-measure?show=128696#a128696
<p style="margin-bottom: 0in">
For variables measured the ordinal level, gamma measures the proportional reduction in error on two variables when anticipating the order of cases on these variables.</p>Statisticshttp://www.explainplease.com/85668/variables-measured-the-ordinal-level-what-does-gamma-measure?show=128696#a128696Tue, 25 Mar 2014 14:21:41 +0000Answered: What is the definition of biased sample
http://www.explainplease.com/127112/what-is-the-definition-of-biased-sample?show=128274#a128274
<p style="margin-bottom: 0in">
Biased sample is a bias in which the sample is collected in a way that some members of the calculated population are less probably to be included than the others.</p>Statisticshttp://www.explainplease.com/127112/what-is-the-definition-of-biased-sample?show=128274#a128274Mon, 24 Mar 2014 08:36:04 +0000Answered: What is the median of 4 5 6 7 8 9
http://www.explainplease.com/122943/what-is-the-median-of-4-5-6-7-8-9?show=123074#a123074
<p style="margin-bottom: 0in">
The median of 4 5 6 7 8 9 is 6.5.</p>
<p style="margin-bottom: 0in">
formula is x(m)=x(n/2)+x(n+2/2)/2.</p>Statisticshttp://www.explainplease.com/122943/what-is-the-median-of-4-5-6-7-8-9?show=123074#a123074Thu, 06 Mar 2014 09:37:14 +0000Answered: ,70,91,85,88,97,53,48,82,88,90,50,56 calculate the mean,median,,mode,an range
http://www.explainplease.com/122354/91-85-88-97-53-88-90-50-56-calculate-the-mean-median-mode-an-range?show=122579#a122579
<h1>
<span style="font-family:times new roman,times,serif;"><span style="font-size: 14px;">Mean is calculated by adding all the numbers and then dividing by the number of values, so mean =74.83</span></span></h1>
<h1>
<span style="font-family:times new roman,times,serif;"><span style="font-size: 14px;">Median is the middle number present,here it is 83.5</span></span></h1>
<h1>
<span style="font-family:times new roman,times,serif;"><span style="font-size: 14px;">Mode is the number which is present most number of times, so mode=88</span></span></h1>
<h1>
<span style="font-family:times new roman,times,serif;"><span style="font-size: 14px;">Range is calculated by subtracting the highest value present in the set from the lowest value, so range=49</span></span></h1>Statisticshttp://www.explainplease.com/122354/91-85-88-97-53-88-90-50-56-calculate-the-mean-median-mode-an-range?show=122579#a122579Tue, 04 Mar 2014 20:53:45 +0000Answered: What is a tree diagram
http://www.explainplease.com/122152/what-is-a-tree-diagram?show=122463#a122463
Tree diagram is used in important decision making and calculations.The diagram begins at a nodule with branches emerging to additinal nodes which will perform the events.Statisticshttp://www.explainplease.com/122152/what-is-a-tree-diagram?show=122463#a122463Tue, 04 Mar 2014 10:27:08 +0000worked 14 hours on and eared $157.50. how many hours will need to work in order to save 375 for a new set of skates?
http://www.explainplease.com/122357/worked-hours-eared-many-hours-will-need-work-order-save-skates
Statisticshttp://www.explainplease.com/122357/worked-hours-eared-many-hours-will-need-work-order-save-skatesTue, 04 Mar 2014 07:28:06 +0000Answered: does 5 days equal to 2,160 minutes
http://www.explainplease.com/122065/does-5-days-equal-to-2-160-minutes?show=122085#a122085
60 minutes x 24 hours = 1440, 1440minutes x 5days = 7200 minutes.Statisticshttp://www.explainplease.com/122065/does-5-days-equal-to-2-160-minutes?show=122085#a122085Mon, 03 Mar 2014 08:25:17 +0000what percentage is $6397 of $33546
http://www.explainplease.com/120709/what-percentage-is-%246397-of-%2433546
Statisticshttp://www.explainplease.com/120709/what-percentage-is-%246397-of-%2433546Wed, 26 Feb 2014 07:08:27 +0000how many leg quarters in a 40 pound box?
http://www.explainplease.com/120463/how-many-leg-quarters-in-a-40-pound-box
Statisticshttp://www.explainplease.com/120463/how-many-leg-quarters-in-a-40-pound-boxTue, 25 Feb 2014 06:59:43 +0000Answered: where do you put parentheses in 1+2*1/3=1
http://www.explainplease.com/114430/where-do-you-put-parentheses-in-1-2-1-3-1?show=114444#a114444
Put the parenthesis around 1+2<br />
<br />
(1+2) * 1/3 = 1<br />
<br />
3 * 1/3 = 1<br />
<br />
1 = 1Statisticshttp://www.explainplease.com/114430/where-do-you-put-parentheses-in-1-2-1-3-1?show=114444#a114444Thu, 30 Jan 2014 09:01:30 +0000Answered: what kind of variable is weight
http://www.explainplease.com/107932/what-kind-of-variable-is-weight?show=113789#a113789
A weight variable is expressed as a number that is larger than 0Statisticshttp://www.explainplease.com/107932/what-kind-of-variable-is-weight?show=113789#a113789Thu, 23 Jan 2014 17:23:36 +0000Answered: What does "over 150%" mean?
http://www.explainplease.com/60214/what-does-over-150%25-mean?show=113766#a113766
A percentage is a number that is written as a fraction. So if something were 100% it would be something that is complete. All effort would be in. If something is 150% that means that it is over 100%.Statisticshttp://www.explainplease.com/60214/what-does-over-150%25-mean?show=113766#a113766Thu, 23 Jan 2014 16:13:02 +0000Answered: is a million million a billion
http://www.explainplease.com/109597/is-a-million-million-a-billion?show=109625#a109625
No. 1,000 million is a billion. Because when you get to 999 million, add one and you need another digit -- 1,000,000,000.<br />
<br />
The British count it differently, by the way. This answer applies to the U.S.Statisticshttp://www.explainplease.com/109597/is-a-million-million-a-billion?show=109625#a109625Tue, 14 Jan 2014 02:32:56 +0000Answered: What is the probability of 5 coins being defective?
http://www.explainplease.com/31977/what-is-the-probability-of-5-coins-being-defective?show=101779#a101779
More details would be required to answer this question accurately.Statisticshttp://www.explainplease.com/31977/what-is-the-probability-of-5-coins-being-defective?show=101779#a101779Sat, 21 Dec 2013 16:24:50 +0000Answered: When do you use different graphs e.g. line graph, bar graph and scatter plot?
http://www.explainplease.com/5755/when-use-different-graphs-line-graph-graph-and-scatter-plot?show=101713#a101713
<p>
You can also use menu commands to save open graphs. There are two commands in SPSS that are used exclusively to make graphs: graph and igraph. (There are several other commands that have subcommands that make graphs, but they will not be discussed here.) For more information you can refer this link.<br>
<a href="http://www.ats.ucla.edu/stat/spss/seminars/SPSSGraphics/spssgraph.htm" rel="nofollow">http://www.ats.ucla.edu/stat/spss/seminars/SPSSGraphics/spssgraph.htm</a></p>Statisticshttp://www.explainplease.com/5755/when-use-different-graphs-line-graph-graph-and-scatter-plot?show=101713#a101713Sat, 21 Dec 2013 11:47:25 +0000How do you use base-ten block to solve 2.16 divided by 3
http://www.explainplease.com/100700/how-do-you-use-base-ten-block-to-solve-2-16-divided-by-3
Statisticshttp://www.explainplease.com/100700/how-do-you-use-base-ten-block-to-solve-2-16-divided-by-3Thu, 19 Dec 2013 08:56:16 +0000Covert the equation y= 4X -5 from slope intercept form two standard form
http://www.explainplease.com/99538/covert-the-equation-from-slope-intercept-form-standard-form
Statisticshttp://www.explainplease.com/99538/covert-the-equation-from-slope-intercept-form-standard-formTue, 17 Dec 2013 20:02:52 +0000determine the possibility of you rolling a 7 sided die what is the probability of rolling an even number
http://www.explainplease.com/96676/determine-possibility-rolling-probability-rolling-number
Statisticshttp://www.explainplease.com/96676/determine-possibility-rolling-probability-rolling-numberThu, 12 Dec 2013 07:28:30 +0000How do use TI-30XS to solve e^-(0.002*400), Answer is 0.449
http://www.explainplease.com/93460/how-do-use-ti-30xs-to-solve-e-0-002-400-answer-is-0-449
Statisticshttp://www.explainplease.com/93460/how-do-use-ti-30xs-to-solve-e-0-002-400-answer-is-0-449Tue, 03 Dec 2013 18:42:32 +0000what is defect rate,sigma level for all and each a 51,000 b 49,000 c 25,000 of errors 510,525,480
http://www.explainplease.com/92102/what-defect-rate-sigma-level-for-and-each-000-000-errors-510-480
Statisticshttp://www.explainplease.com/92102/what-defect-rate-sigma-level-for-and-each-000-000-errors-510-480Wed, 27 Nov 2013 19:54:32 +0000If I roll two fair dice once, whats the probability that the sum is not 3
http://www.explainplease.com/91308/roll-two-fair-dice-once-whats-the-probability-that-the-sum-not
Statisticshttp://www.explainplease.com/91308/roll-two-fair-dice-once-whats-the-probability-that-the-sum-notMon, 25 Nov 2013 23:18:52 +0000what is the sequence of these numbers 3, -6, 12, 4, 20, ?
http://www.explainplease.com/90467/what-is-the-sequence-of-these-numbers-3-6-12-4-20
is the answer 13, 14, 6, 16Statisticshttp://www.explainplease.com/90467/what-is-the-sequence-of-these-numbers-3-6-12-4-20Fri, 22 Nov 2013 21:32:41 +0000Answered: Within numerically-formatted excel cells, what does "######" indicate?
http://www.explainplease.com/89152/within-numerically-formatted-excel-cells-%23%23%23%23%23%23-indicate?show=89244#a89244
It means that the number is too long for the width of the column. If you change the column width, you will see the number. To change the column width, hover over the column edge at the top of the spreadsheet - cursor will change to an arrow - click, hold and drag. Hope this helps.Statisticshttp://www.explainplease.com/89152/within-numerically-formatted-excel-cells-%23%23%23%23%23%23-indicate?show=89244#a89244Wed, 20 Nov 2013 03:29:57 +0000compare teh Pearson correlation for the followind data
http://www.explainplease.com/89227/compare-teh-pearson-correlation-for-the-followind-data
x y<br />
<br />
2 3<br />
<br />
3 1 SSx= SSy= SP= r=0.5<br />
<br />
6 5<br />
<br />
4 4<br />
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5 2Statisticshttp://www.explainplease.com/89227/compare-teh-pearson-correlation-for-the-followind-dataWed, 20 Nov 2013 02:04:22 +0000Pearson correlation
http://www.explainplease.com/89223/pearson-correlation
a set of n=25 pairs of scores (x and y values) has a Pearson correlation of r=0.80 how much of the variance for the y scores is predicted by the relationship with x?Statisticshttp://www.explainplease.com/89223/pearson-correlationWed, 20 Nov 2013 01:50:19 +0000at the .05 level of significance is a p = .10 significant
http://www.explainplease.com/88284/at-the-05-level-of-significance-is-a-p-10-significant
Statisticshttp://www.explainplease.com/88284/at-the-05-level-of-significance-is-a-p-10-significantMon, 18 Nov 2013 05:52:41 +0000Solve for “?” by finding a pattern that utilizes every number within each arrangement.
http://www.explainplease.com/86323/finding-pattern-utilizes-every-number-within-arrangement
Statisticshttp://www.explainplease.com/86323/finding-pattern-utilizes-every-number-within-arrangementWed, 13 Nov 2013 07:02:12 +0000