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Statistics Multiple Choice Questions
4/16/12 10:14 AM
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Business » Accounting/Business Analysis/Financial Reporting » Problem #101588 Search over 200,000 answers Topic: Business/Accounting/Business Business/Accounting/Business Analysis/Financial Reporting This homework question: Statistics Multiple Choice Questions Question 1 Multiple Choice Which of the following divides a group of data into four subgroups? quartiles percentiles standard deviation median Question Question 2 Multiple Multiple Choice If the standard deviation of a population is 9, the population variance is: 3 9 21.35 81 Question Question 3 Multiple Choice Choice What is the median median for the following following numbers? numbers? 83 54 48 60
Question 4 Multiple Choice Which of the following is not a measure of central tendency? percentile quartile standard deviation mode Question 5 Multiple Choice What is 40th percentile of the following numbers? 39 29.4 17 23 Question 6 Multiple Choice What is the value of the coefficient of skewness for the following population of numbers? 1.04 0.56 0.97 0.28 Question 7 Multiple Choice Consider the following population of numbers. What is the z score for 6? 0.66 0.95 1.23 +1.23 Question 8 Multiple Choice Consider the following grouped data. What is the sample variance of these data? 212.69 208.90 14.45 14.58 Question 9 Multiple Choice What is the sample standard deviation of the following numbers? 3.42 2.96 11.67 8.75 Question 10 Multiple Choice What is the mode for the following numbers? 3 http://brainmass.com/business/accounting-business-analysis-financial-reporting/101588
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Statistics Multiple Choice Questions
4/16/12 10:14 AM
4 5 6 Question 11 Multiple Choice Suppose data are normally distributed with a mean of 120 and a standard deviation of 30. Between what two values will approximately 68% of the data fall? 60 and 180 90 and 150 30 and 210 105 and 135 Question 12 Multiple Choice The interquartile range is which of the following? the range of the middle 50% of the data Q2 the difference between any two quartiles the square of the standard deviation Question 13 Multiple Choice According to Chebyshev's theorem, if a population has a mean of 80 and a standard deviation of 35, at least what proportion of the values lie between 30 and 130? .35 .68 .49 .51 Question 14 Multiple Choice The middle value of an ordered array of numbers is the mean median mode midpoint Question 15 Multiple Choice Consider the following grouped data. What is the mode of these data? 16 35 15 20 Question 16 Multiple Choice The sum of the deviations about the mean are always: the range the standard deviation total zero http://brainmass.com/business/accounting-business-analysis-financial-reporting/101588
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Statistics Multiple Choice Questions
4/16/12 10:14 AM
positive Question 17 Multiple Choice If a distribution is abnormally tall and peaked, then is can be said that the distribution is: mesokurtic platykurtic leptokurtic pyrokurtic Question 18 Multiple Choice According to the empirical rule, approximately what percent of the data should lie within μ ± 2σ? 68% 75% 95% 99.7% Question 19 Multiple Choice What is the first quartile of the following numbers? 55 62.5 65 70 Question 20 Multiple Choice What is the population variance of the following numbers? 3.31 10.98 3.58 12.81 Question 21 Multiple Choice Which of the following describe the middle part of a group of numbers? measures of central tendency measures of variability measures of shape measures of association Question 22 Multiple Choice What is the coefficient of correlation for the following two variables? .129 .205 .366 .491 Question 23 Multiple Choice The mean of a distribution is 23, the median is 24, and the mode is 25.5. It is most likely that this http://brainmass.com/business/accounting-business-analysis-financial-reporting/101588
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Statistics Multiple Choice Questions
4/16/12 10:14 AM
distribution is: negatively skewed positively skewed symmetrical asymptotic Question 24 Multiple Choice What is the mean of the following numbers? 12.5 13 11 10.3 Question 25 Multiple Choice The mean of a distribution is 14 and the standard deviation is 5. What is the value of the coefficient of variation? 60.4% 48.3% 35.7% 27.8% Attachments to further explain the question:(this is not the answer) Q3.doc Preview of question attachments Q3.doc
