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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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 37 36 29 19 18 17 14 13.6 12.7 The range of the sample data is $ million. (Type an integer or a decimal.)
Price of 9 2-year old Chevy Cobalts in the LA area. 14050 8998 13999 7889 12999 7200 10995 5500 9980 Find the sample mean, median, sample standard deviation, and interquartile range.
Which of the following measure the average deviation of a data set? 1. sample range 2. sample interquartile range 3. sample coefficient of variation 4. sample standard deviation 5. sample variance
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 26 17 13 12 10 9.7 8.6 O The range of the sample data is S million. (Type an integer or a decimal.) The variance of the sample data is. (Round to two decimal places as needed.) The standard deviation of the sample data is S million. (Round to two decimal places as needed.) Is the standard deviation of the sample a good estimate of the variation of salaries of TV personalities in general? O A. Yes, because the standard deviation is an unbiased estimator. O B. No, because the sample is not representative of the whole population. O C. Yes, because the sample is random. O D. No, because there is an outlier in the sample data.
Calculate the mean of the following set of numbers, SHOW YOUR WORK: 25,22,26,24,21,29,26,20,28,23 Mean:____________ Calculate the variance from the above values, SHOW YOUR WORK. X X - Mean (X - Mean)2 25 22 26 24 21 29 26 20 28 23 TOTAL Variance:____________ Calculate the standard deviation from the above values, SHOW YOUR WORK. Calculate the mean of the following values, SHOW YOUR WORK: 82,85,90,86,91,90,81,86,94,89. Mean: ___________ Calculate the variance from the above values (question 4), SHOW YOUR WORK. X X - Mean (X - Mean)2 82 85 90 86 91 90 81 86 94 89 TOTAL…
Find the sample variance and the standard deviation for the following sample. Round the answers to at least two decimal places as needed. 16 30 22 18 11 10 Send data to Excel The sample variance is The sample standard deviation is
Tips given to taxi drivers form a substantial part of their income. They also serve as a loose metric of service quality that can be useful for taxi companies. An analysis of a large dataset shows that the tips given (as a percentage of taxi fares) are normally distributed with mean 21.3% and standard deviation 7.5%. Furthermore, tips received for different trips are independent from each other. taxi driver expects to do 2000 trips next year. For approximately how many of these trips will he receive a tip over 25%?
Listed below are the numbers of hurricanes that occurred in each year in a certain region. The data are listed in order by year. Find the range, variance, and standard deviation for the given sample data. Include appropriate units in the results. What important feature of the data is not revealed by any of the measures of variation? 19 14 9 3 10 15 20 4 10 20 14 6 16 13 The range of the sample data is nothing ▼ years.years. hurricanes squared .hurricanes2. years squared .years2. hurricanes.
Listed below are the numbers of hurricanes that occurred in each year in a certain region. The data are listed in order by year. Find the range, variance, and standard deviation for the given sample data. Include appropriate units in the results. What important feature of the data is not revealed by any of the measures of variation? 14 14 12 15 The range of the sample data is 18 hurricanes. (Round to one decimal place as needed.) The standard deviation of the sample data is (Round to one decimal place as needed.) 16 15 18 20 6 2 17 10 4 8
Find the range, sample standard deviation and inter-quartile range (1QR) of the following data set. 31 31 39 61 66 78 82 89 90 93 range = (Please enter an exact answer.) standard deviation (s) = (Round to one decimal place.) IQR = (Please enter an exact answer.) A new number, 264, is added to the data set above. Find the range, sample standard deviation and IQR of the new data set. range = (Please enter an exact answer.) standard deviation = |(Round 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 O IQR
Dro 9. ed below are the amounts (dollars) it costs for marriage proposal packages at different baseball stadiums. Find the range, variance, and standard deviation for the agiven sample data, Include appropriate units in the results. Are there any outliers, and are they likely to have much of an effect on the measures of variation? 37 50 50 65 65 85 95 170 185 220 260 350 500 1750 2500 The range of the sample data is (1)- (Type an integer or a decimal. Do not round.) The standard deviation of the sample data is (Round to one decímal place as needed.) (2) – The variance of the sample data is (3) (Round to one decimal place as needed.) Are there any outliers and, if so, are they likely to have much of an effect on the measures of variation? O A. Yes, the smallest amounts are much lower than the rest of the data, and appear to be outliers. It is not likely that these are having a large effect on the measures of variation. O B. No, there are not any outliers. O C. Yes, the largest amounts…
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

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