Question Details

61. What is the midpoint of the third class interval?

A. 22.5

B. 27.5

C. 32.5

D. 37.5

E. 42.5

Use the following to answer questions 62-64:

In a statistic class, 10 scores were randomly selected with the following results were obtained:

74, 73, 77, 77, 71, 68, 65, 77, 67, 66

62. What is the mean?

A. 71.5

B. 72.0

C. 77.0

D. 71.0

E. 73.0

63. What is the median?

A. 71.5

B. 72.0

C. 77.0

D. 71.0

E. 73.0

64. What is the mode?

A. 71.5

B. 72.0

C. 77.0

D. 71.0

E. 73.0

Use the following to answer questions 65-67:

The numbers of rooms for 15 homes recently sold were:

8, 8, 8, 5, 9, 8, 7, 6, 6, 7, 7, 7, 7, 9, 9

65. What is the mean?

A. 8.0

B. 7.0

C. 6.0

D. 9.0

E. 7.4

66. What is the median?

A. 8.0

B. 7.0

C. 6.0

D. 9.0

E. 7.4

67. What is the mode?

A. 8.0

B. 7.0

C. 6.0

D. 9.0

E. 7.4

Use the following to answer questions 68-70:

The values given below are snow depths measured as part of a study of satellite observations and water

resources.

19, 18, 12, 25, 22, 8, 8, 16

68. What is the mean?

A. 8

B. 23.5

C. 16

D. 17

E. 18

69. What is the median?

A. 8

B. 23.5

C. 16

D. 17

E. 18

70. What is the mode?

A. 8

B. 23.5

C. 16

D. 17

E. 18

Use the following to answer questions 71-73:

In a hearing test, subjects estimate the loudness (in decibels) of sound, and the results are:

68, 67, 70, 71, 68, 75, 68, 62, 80, 73, 68