Data Analysis

The list of data shows the allowance earned by eight of the students in Ms. Tomas's class. What is the mean allowance earned in Ms. Tomas's class?

$7, $12, $8.50, $10, $7, $8, $10.50, $11

(a)  

Tags

CCSS.7.NS.A.3

Based on the table, if there are 360 students in the school on the A honor roll, how many students are 7th graders?

• 11 students

• 90 students

• 99 students

• 100 students

Tags

CCSS.6.RP.A.3B

A streaming service randomly selected 100 of its subscribers and asked them how many hours of shows they watch per week. Of those surveyed, 45 watch more than 10 hours per week. Based on the data, if the company has 2, 500 subscribers, then how many watch more than 10 hours per week?

• 400

• 1,125

• 1,400

• 800

Tags

CCSS.7.RP.A.3

The mean absolute deviation is 0.1. What conclusions can be drawn?

• The data points are close to the median.

• The data points are far from the median.

• The data points are far from the mean.

• The data points are close to the mean.

Determine the Interquartile Range (IQR) of the data below.

11, 13, 16, 17, 8, 10, 14, 14, 17, 14

• 11

• 16

• 5

• 14

Select all the true statements.

• Given a box plot, it is always possible to calculate the mean of the data.

• Given a box plot, it is always possible to calculate the median of the data.

• Given a box plot, it is always possible to construct a corresponding dot plot.

• Given a dot plot, it is always possible to construct a corresponding box plot.

• Given a histogram, it is always possible to construct a corresponding box plot.

The number of students in 10 kindergarten classes is shown below. 20, 18, 21, 18, 22, 24, 18, 23, 23, 24 What number of students describes the third quartile?

(a)  

The number of students in 10 kindergarten classes is shown below. 20, 18, 21, 18, 22, 24, 18, 23, 23, 24 What number of students describes the interquartile range?

(a)  

If the mean absolute deviation is a really large number, then what does that mean about the data set?

Paulo got these grades in three tests: 72, 80 and 82. He had one more test to take. He wanted an average of 80 for the four tests. What mark must he get in the fourth test?

• 80

• 234

• It is not possible for him to get an 80 average

• 86

Tags

CCSS.7.EE.B.3