Math Statistics Review

Ervin bowled 7 games last weekend. His scores are: 155, 165, 138, 172, 127, 193, 142. What is the range of Ervin's scores?

• 193

• 127

• 60

• 66

What is the range?

• average

• biggest-smallest

• the middle #

• happening the most

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

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.

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

The data below represent the number of absences and the final grade of 9 randomly selected students from a Math 1 class. Find the equation for the line of best fit.

What kind of correlation?

• Positive

• Negative

• No Correlation

What kind of correlation?

• Positive

• Negative

• No Correlation