4. Statistics studies both quantitative and qualitative variables.*

True

False

5. Statistics is the science of analyzing*

A. Qualitative data

B. Quantitative data

C. Both a and b

D. None of these

6. The functions of statistics are*

A. Simplifies complexities

B. Expresses facts in numbers

C. Presents data in condensed form

D. All of the above

Other:

7. How do you find the median of a data set that has two middle numbers?answer choicesYou pick the higher middle numberYou pick the lower middle numberAdd the two middle numbers and divide it by 2Subtract the two middle numbers and divide by 2*

A. You pick the higher middle number

B. You pick the lower middle number

C. Add the two middle numbers and divide it by 2

D. Subtract the two middle numbers and divide by 2

Other:

8. What does the standard deviation tell us about the data set?*

How spread out the numbers are

B. How much each number in the data set increases by

How much each number in the data set decreases by

D. None of these

Other:

9. Say 'TRUE' or 'FALSE' Mean, Median, Mode of a grouped data are always equal*

TRUE

FALSE

Other:

10, In a discrete data, what name is given to the item occurring most frequently?answer choicesMedianModeMeanFrequency*

MEAN

MEDIAN

MODE

FREQUENLY

Other:

11. What is the mean of first 10 natural numbers?*

55

5

5.5

6.5

Other:

12.'TRUE' or 'FALSE' The median of an un-grouped data and the median when the same data is grouped are always the same*

TRUE

FALSE

Option 3

Option 4

Other:

13. For a data containing 15 items arranged in ascending order, what item is the median of the dataanswer choices7th item8th item6th and 7th item 7th and 8th item*

7th item

8th item

6th and 7th item

7th and 8th item

Other:

14. What is the median of first 101 natural numbers?answer choices51505253*

51

50

53

52

Other:

15. A radio station asks its listeners to dial one of two numbers to indicate their preference for one of two candidates in an upcoming election. Of the responses received, 76% favored candidate A. If there are 1,500 registered voters, how many will vote for candidate A?answer choices1,14061,974100*

1140

1974

6

100

Other:

16. In order to find the median, the data must be sorted from least to greatest first.*

TRUE

FALSE

Other:

17. What's another word for median?*

AVERAGE

MODE

MIDDLE

MEAN

Other:

18. What is another word for mean?answer choicesmedianaveragemodesumquotient*

MEDIAN

MODE

SUM

AVERAGE

QUOTIENT

Other:

19. What is the range?The sum of the largest and smallest numberThe number in the middleThe difference between the largest and smallest numberThe number that appears most often*

The sum of the largest and smallest number

The number in the middle

The difference between the largest and smallest number

The number that appears most often

Other:

20. Ervin bowled 7 games last weekend. His scores are: 155, 165, 138, 172, 127, 193, 142. What is the range of Ervin's scores?answer choices1931276066*

193

127

60

66

Other:

21. What is the first thing you should do before finding the median or the mode?answer choicesStart crossing numbers offPut numbers in order from least to greatestList the numbers how they areLook for repeats*

Start crossing numbers off

Put numbers in order from least to greatest

List the numbers how they areLook for repeats

D. None of these

Other:

22. What is the mode? 500, 600, 700, 800, 500, 600*

500 and 600

800

700 and 800

500

Other:

23. Q. What is the mode? 3, 12, 12, 14, 15, 4, 12, 12, 16, 16*

12

16

1

4

Other:

24. Q. Students at Cooper school took a survey about what kinds of pets they had at home. Then, students plotted that information on a frequency table. How many kids have dogs and cats for pets?answer choices1912720*

19

12

7

20

Other:

25. Find the median of the data set. 9, 8, 7, 11, 7, 16, 3*

8

7

3

2

Other:

26. Calculate the MEAN for the data set: 6, 7, 12, 8, 7, 4, 8, 8, 7*

7

7.44

8

7 and 8

Other:

27. Owen was asked to write down the number of pull-ups that 7 of his classmates could do. He wrote down: 3, 2, high, low, 6, 1, 8. Owen said that "high" was greater than 6 and "low" was less than 2. Find the median.*

2

3

2.5

cannot be determined

Other:

28. On a recent test, one class of 26 students had a mean score of 78%, while another class of 32 students had a mean score of 86%. What is the overall mean of the two classes combined?*

81

82

83

82.4

Other:

29. What makes a question statistical?*

Population

Measurability

Variability

All of the above

Other:

30. Identify the POPULATION in the following question: What are the ages of the students at Clarke University?*

Students

Age

Clarke University

D. None of these

Other:

31. Identify the POPULATION in the following question: What are the ages of the students at Clarke University?*

Student

Ages

Clarke University

D. None of these

Other:

32. What does it mean for a graph of data to be SYMMETRICAL?*

Most of the data is grouped to the left side

Most of the data is grouped to the right side

Most of the data is in the middle (draw a line down the middle and both sides look the same)

D. None of these

Other:

33. What does it mean for a graph of data to be SKEWED LEFT?*

Most of the data is grouped to the left side

Most of the data is grouped to the right side

Most of the data is in the middle (draw a line down the middle and both sides look the same)

D. None of these

Other:

34. What does it mean for a graph of data to be SKEWED RIGHT?*

Most of the data is grouped to the left side

Most of the data is grouped to the right side

Most of the data is in the middle (draw a line down the middle and both sides look the same)

D. None of these

Other:

35. Which answer shows categorical data?*

AGE

HEIGHT

NUMBER OF COUSIN

FAVORITE SINGER

Other:

36. Which answer shows numerical data?*

Favorite animal

Hours of sleep last night

Hair color

Secondary school you attended

37. Which of the following is a measure of variability?*

mean

meadian

mode

standard deviation

Other:

38. All of the below sets have the same mean.Set 1-Standard Deviation=3.1. Set 2 -Standard Deviation=4.9. Set 3-Standard Deviation=1.7. Set 4-Standard Deviation=3.2. Which set of data probably has the points closest to the mean?*

1

2

3

4

Other:

39. Four data sets are shown below.Set 1: {10, 19, 38, 50, 51}. Set 2: {5, 21, 26, 39, 51}. Set 3: {9, 38, 50, 50, 51}. Set 4: {5, 28, 28, 28, 51}Which data set has the largest standard deviation?*

Set 1

Set 2

Set 3

Set 4

40. If the standard deviation of a data set is 4, what is the variance?*

2

4

16

D. None of these

Other:

41. Ervin bowled 7 games last weekend. His scores are: 155, 165, 138, 172, 127, 193, 142. What is the sample standard deviation of Ervin's scores?*

511.33

22.61

438.48

20.94

Other:

42. The number of goals scored by seven forwards in one soccer season were 8, 6, 4, 8, 3, 1, and 5. Find the mean number of goals scored by the seven forward*

20

10

5

3

Other:

43 . What is the variance for the data given:5, 10, 7, 12, 0, 20, 15, 22, 8, 2*

52.77

47.47

81

102.01

Other:

44. What does this symbol represent?*

Variance

Standard Deviation

Mean Absolute

Sigma

Other:

45. What does variance represent?*

How many different variations are in the data set.

How the population varies compared to the sample.

How spread out each data value is from the mean.

The range, but with a bunch of other stuff going on.

Other:

46. How do you calculate the standard deviation?*

Its a long process and I can't explain it right now.

Divide the variance by 2.

Take the square root of the variance.

Find the mean and multiply it by the variance.

Other:

47. What does this symbol represent?*

Standard Deviation

Variance

Mean Absoulute

Sigma

Other:

48. the square of this value will give the variance*

mean

median

variance

Standard Deviation

Other:

49. Before you can begin calculating the variance, you must first:*

find the mean

find the median

find the mode

find the range

Other:

50. What is the standard deviation for the data given:5, 10, 7, 12, 0, 20, 15, 22, 8, 2*

6.89

10.1

7.26

9

Other: