Statistics Multiple Choice Questions

4/16/12 10:14 AMStatistics Multiple Choice Questions

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Statistics Multiple Choice Questions

Question 1 Multiple ChoiceWhich of the following divides a group of data into four subgroups?

quartilespercentilesstandard deviationmedian

Question 2 Multiple ChoiceIf the standard deviation of a population is 9, the population variance is:

3921.3581

Question 3 Multiple ChoiceWhat is the median for the following numbers?

83544860

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Question 4 Multiple ChoiceWhich of the following is not a measure of central tendency?

percentilequartilestandard deviationmode

Question 5 Multiple ChoiceWhat is 40th percentile of the following numbers?

3929.41723

Question 6 Multiple ChoiceWhat is the value of the coefficient of skewness for the following population of numbers?

1.040.560.970.28

Question 7 Multiple ChoiceConsider the following population of numbers. What is the z score for 6?

0.660.951.23+1.23

Question 8 Multiple ChoiceConsider the following grouped data. What is the sample variance of these data?

212.69208.9014.4514.58

Question 9 Multiple ChoiceWhat is the sample standard deviation of the following numbers?

3.422.9611.678.75

Question 10 Multiple ChoiceWhat is the mode for the following numbers?

3



456

Question 11 Multiple ChoiceSuppose data are normally distributed with a mean of 120 and a standard deviation of 30. Between whattwo values will approximately 68% of the data fall?

60 and 18090 and 15030 and 210105 and 135

Question 12 Multiple ChoiceThe interquartile range is which of the following?

the range of the middle 50% of the dataQ2the difference between any two quartilesthe square of the standard deviation

Question 13 Multiple ChoiceAccording to Chebyshev's theorem, if a population has a mean of 80 and a standard deviation of 35, atleast what proportion of the values lie between 30 and 130?

.35

.68

.49

.51

Question 14 Multiple ChoiceThe middle value of an ordered array of numbers is the

meanmedianmodemidpoint

Question 15 Multiple ChoiceConsider the following grouped data. What is the mode of these data?

16351520

Question 16 Multiple ChoiceThe sum of the deviations about the mean are always:

the rangethe standard deviation totalzero



positive

Question 17 Multiple ChoiceIf a distribution is abnormally tall and peaked, then is can be said that the distribution is:

mesokurticplatykurticleptokurticpyrokurtic

Question 18 Multiple ChoiceAccording to the empirical rule, approximately what percent of the data should lie within μÂ± 2σ?

68%75%95%99.7%

Question 19 Multiple ChoiceWhat is the first quartile of the following numbers?

5562.56570

Question 20 Multiple ChoiceWhat is the population variance of the following numbers?

3.3110.983.5812.81

Question 21 Multiple ChoiceWhich of the following describe the middle part of a group of numbers?

measures of central tendencymeasures of variabilitymeasures of shapemeasures of association

Question 22 Multiple ChoiceWhat is the coefficient of correlation for the following two variables?

.129

.205

.366

.491

Question 23 Multiple ChoiceThe mean of a distribution is 23, the median is 24, and the mode is 25.5. It is most likely that this



distribution is:

negatively skewedpositively skewedsymmetricalasymptotic

Question 24 Multiple ChoiceWhat is the mean of the following numbers?

12.5131110.3

Question 25 Multiple ChoiceThe mean of a distribution is 14 and the standard deviation is 5. What is the value of the coefficient ofvariation?

60.4%48.3%35.7%27.8%

Attachments to further explain the question:(this is not the answer)

Q3.doc

Preview of question attachmentsQ3.doc

quartiles

percentiles

standard deviation

median

3

9

21.35



81

What is the median for the following numbers?

83

54

48

60

percentile

quartile

standard deviation

mode

What is 40th percentile of the following numbers?

39

29.4

17

23



What is the value of the coefficient of skewness for the followingpopulation of numbers?

1.04

0.56

0.97

0.28

Consider the following population of numbers. What is the z score for6?

0.66

0.95

1.23

+1.23

Consider the following grouped data. What is the sample variance ofthese data?

212.69

208.90

14.45

14.58



What is the sample standard deviation of the following numbers?

3.42

2.96

11.67

8.75

What is the mode for the following numbers?

3

4

5

6

60 and 180

90 and 150

30 and 210

105 and 135

the range of the middle 50% of the data



Q2

the difference between any two quartiles

the square of the standard deviation

.35

.68

.49

.51

mean

median

mode

midpoint

Consider the following grouped data. What is the mode of these data?

16

35

15

20



the range

the standard deviation total

zero

positive

mesokurtic

platykurtic

leptokurtic

pyrokurtic

68%

75%

95%

99.7%

What is the first quartile of the following numbers?

55



62.5

65

70

What is the population variance of the following numbers?

3.31

10.98

3.58

12.81

measures of central tendency

measures of variability

measures of shape

measures of association

What is the coefficient of correlation for the following two variables?

.129

.205

.366



.491

negatively skewed

positively skewed

symmetrical

asymptotic

What is the mean of the following numbers?

12.5

13

11

10.3

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60.4%

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Plain textCited sources when necessaryAttached file(s)

MCQ - Mean median mode.doc

Written by Business expert:

Rohtas Kumar, MBAMore info

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Statistics Multiple Choice Questions

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