Math Statistics Review

What is the mean?

• happening the most

• the number in the middle

• biggest-smallest

• the average

Describe the shape of the data.

• Symmetrical

• Skewed Left

• Skewed Right

Describe the shape of the data.

• Symmetrical

• Skewed Left

• Skewed Right

The following boxplot shows the heights of students in Kyra’s Health class. Which measures of center spread should be used to describe it?

• Mean and Standard Deviation because the shape of the data is normal.

• Median and Standard Deviation because the shape of the data is skewed.

• Mean and IQR because the shape of the data is normal.

• Median and IQR because the shape of the data is skewed.

The boxplots below show test scores from Mr. Payne’s 1^st and 2^nd period classes.

Which class typically performed better?

• First period

• Second period

The data below represent the number of absences and the final grade of 9 randomly selected students from a Math 1 class. The data shows what type of correlation?

• Negative Correlation

• Positive Correlation

What kind of correlation?

• Positive

• Negative

• No Correlation

How many students scored between a 86 and a 90?

• 1

• 3

• 6

• 10

Which best represents the Interquartile Range?

• 15

• 85

• 93

• 78

A restaurant sells pizza for the prices in the data table. Calculate the linear regression equation of the data.