Socrato > Test Details - MCAS Grade 7 Measures of Central Tendency

Question Preview

7.D.2 Find, describe, and interpret appropriate measures of central tendency (mean, median, and mode) and spread (range) that represent a set of data. Use these notions to compare different sets of data. This standard is intentionally the same as standard 8.D.3.

Jiro bowled 7 games in a tournament. The list below shows his scores for those 7 games.

149, 160, 180, 155, 160, 137, 158

What is the mode of Jiro's scores?

A.	155
B.	157
C.	158
D.	160

Sina's goal is to exercise a mean of 45 minutes per day for one week. For the first 6 days of the week, she exercised 35, 40, 37, 42, 45, and 50 minutes.
What is the number of minutes Sina must exercise on the 7th day of the week to reach her goal exactly?

A.	21 minutes
B.	42 minutes
C.	49 minutes
D.	66 minutes

The list below shows the number of minutes that Katie played in each basketball game last season.

35, 13, 34, 25, 35, 26

What was the mean number of minutes that Katie played per game?

A.	22 minutes
B.	28 minutes
C.	30 minutes
D.	35 minutes

Ms. Larson gave a mathematics test to nine of the students in her class. Each student's score is listed in the box below.

85, 77, 88, 52, 82, 95, 93, 77, 80

a. Make a stem-and-leaf plot for these test scores. Be sure to include a key.

b. What is the median of these test scores? Show or explain how you got your answer.

c. The test score of one more student was added to the list. With the new score included, the median is 83. What score was added to the list? Show or explain how you got your answer.

A.	See website

Send To Friend
Friend's Email


Message