Consider the followIng sample data.Sample A:Sample B:Sample C:7, 11, 1565, 69, 731,020; 1,024; 1,028(a) Find the mean and standard devlation for each sample.Sample ASample BSample CMean11691.024Sample Standard Deviation(b) What does this exercise show about the standard devlation?O The Idea Is to illustrate that the standard devlation Is not a function of the value of the mean.O The Idea Is to illustrate that the standard devlation Is a function of the value of the mean.< Prev11 of 19Next.... ...... .

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MATLAB: An Introduction with Applications

6th Edition

ISBN:9781119256830

Author:Amos Gilat

Publisher:Amos Gilat

Chapter1: Starting With Matlab

Section: Chapter Questions

Problem 1P

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In a study on running and happiness, runners indicated the number of miles they ran in a day and their subsequent score on a Happiness Survey (higher score = greater happiness). Runner # of miles (x) Happiness Score (y) 1 16 12 2 4 3 12 14 4 2 8 For these data: The mean of miles run is: 8.50 The mean of the Happiness scores is: 10.00 The standard deviation of the Miles scores is: 5.72 The standard deviation of the Happiness scores is: 3.16 In your submission, please include a copy of the SPSS or Excel output and answer the following: A. What is the r and r? value? B. Based on Pearson's r and r2 value, describe the relationship (direction/strength) that exists between # of miles run and Happiness scores. C. Create a scatterplot for the data using Excel or SPSS (include output in your submission). D. Insert the prediction line from Excel/SPSS on your scatterplot.
To compute a student's Grade Point Average (GPA) for a term, the student's grades for each course are weighted by the number of credits for the course. Suppose a student had these grades: 3.6 in a 5 credit Math course 2.6 in a 3 credit Music course 3.0 in a 4 credit Chemistry course 3.4 in a 4 credit Journalism course What is the student's GPA for that term? Round to two decimal places. Student's GPA =
Listed below are the top 10 annual salaries (in millions of dollars) of TV personalities. Find the range, variance, and standard deviation for the sample data Given that these are the top 10 salaries, do we know anything about the variation of salaries of TV personalities in general? 38 36 34 27 16 12 9 8 7.8 6.4 The range of the sample data is S milion. (Type an integer or a decimal.) ces
Use the magnitudes (Richter scale) of the 120 earthquakes listed in the accompanying data table. Use technology to find the range, variance, and standard deviation. If another value, 8.00, is added to those listed in the data set, do the measures of variation change much? 3.272.452.542.432.752.372.192.421.911.432.851.731.992.322.332.704.742.873.382.722.833.423.952.993.873.473.082.942.703.602.842.373.033.232.593.643.242.662.352.432.813.952.522.922.983.412.272.562.933.162.201.151.934.002.542.832.352.311.522.801.951.602.452.332.081.553.201.491.812.551.662.352.452.082.192.752.002.792.392.671.692.881.841.991.862.561.972.183.671.553.162.461.881.502.793.283.822.752.452.712.541.642.183.032.361.481.922.322.651.411.391.802.242.302.481.732.402.442.482.44
Subject : calculas
Find the range, MAD, variance, and standard deviation of the following grouped data?
Please find the range, sample standard deviation and inter-quartile range (IQR) of the following data set. 25 37 39 56 61 71 73 73 80 85 range = (Please enter an exact answer.) standard deviation (ss) = (Please show your answer to one decimal place.) IQR = (Please enter an exact answer.)A new number, 180, is added to the data set above. Please find the new range, sample standard deviation and IQR of the new data set.range = (Please enter an exact answer.) standard deviation = (Please show your answer to one decimal place.) IQR = (Please enter an exact answer.)Which measure of spread is less affected by the addition of the extreme observation? Range standard deviation IQR
1 2 3 4 Here are the foot lengths (in centimeters) for a random sample of 7 fourteen-year-olds from the United Kingdom. Find the mean and standard deviation. 25, 22, 20, 25, 24, 24, 28 Mean= type your answer... Standard deviation = type your answer... cm cm
Consider the following sample data Sample A: 7,14,21 Sample B: 77,84,91 Sample C: 1,080:1,087: 1094 (a) Find the mean and standard deviation for each sample Sample A Sample B Sample C Mean ? ? ? Sample standard Deviation ? ? ? (b) What does this exercise show about the standard deviation? A. The idea is to illustrate that the standard deviation is not a functjion of the value of the mean. B. The idea is to illustrate that the standared deviation is a function of the value of the mean.
Please find the range, sample standard deviation and inter-quartile range (IQR) of the following data set. 22 35 36 46 46 56 58 69 76 93 range = (Please enter an exact answer.) standard deviation (ss) = (Please show your answer to one decimal place.) IQR =________ (Please enter an exact answer.)A new number, 215, is added to the data set above. Please find the new range, sample standard deviation and IQR of the new data set.range =________ (Please enter an exact answer.) standard deviation = ___________ (Please show your answer to one decimal place.) IQR =________ (Please enter an exact answer.)Which measure of spread is less affected by the addition of the extreme observation? IQR Range standard deviation
Consider the following data: −10, −10, 0, 3, −10, 3, 3 Step 1 of 3: Calculate the value of the sample Variance. Round your answer to one decimal place. Step 2 of 3: Calculate the value of the sample deviation. Round your answer to one decimal place. Step 3 of 3: Calculate the value of the range.
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