Data Review

What is the MEDIAN of this data?

• 65

• 40

• 915

• 13

Find the mean:
28, 18, 19, 18, 17

• 20

• 18

• 11

• 19

Find the median for the set of numbers:

23, 37, 11, 58, 13, 45

• 30

• 23

• 37

• 28

To find the ________ you put all numbers in order from least to greatest and find the number that is in the middle.

• Mean

• Median

• Mode

• Range

A histogram displays the number of hours students spend on homework each week. If the 0-1 hour range has the smallest bar, what does this suggest?

• No students spend 0-1 hour on homework.

• Few students spend only 0-1 hour on homework each week.

• Most students spend 0-1 hour on homework.

• The data is incorrect.

A histogram shows the scores on a math test. If the 70-79 range has the tallest bar, what does this indicate?

• Most students scored between 70 and 79.

• The test was out of 70-79 points.

• One student scored between 70 and 79.

• The average score was between 70 and 79.

A pie chart shows the favorite colors of a class. If the segment for blue is larger than that for red, what does this tell us?

• Blue is the only favorite color.

• More students choose blue as their favorite color than red.

• Red is less popular than blue.

• B) and C) are correct.

A scatter plot illustrates the relationship between the number of hours played on video games and grades. If there is a downward trend line, what does this suggest?

• Playing more video games leads to higher grades.

• Playing more video games leads to lower grades.

• There is no relationship between video games and grades.

• Grades increase as video game hours decrease.

A scatter plot shows the relationship between hours studied and test scores. If there is a trend line going upwards, what does this suggest?

• As study hours decrease, test scores increase.

• As study hours increase, test scores decrease.

• As study hours increase, test scores increase.

• There is no relationship between study hours and test scores.

A scatter plot shows the relationship between age and height of children. If older children are generally higher on the y-axis, what does this imply?

• Older children are usually shorter.

• Height decreases with age.

• Older children are usually taller.

• Age and height are not related.