Calculating Measures of Center

The dot plot represents the distribution of wages earned during a one-week period by 12 college students. What is the mean? Interpret this value based on the situation.

The dot plot represents the distribution of wages earned during a one-week period by 12 college students. What is the median? Interpret this value based on the situation.

The data set represents the number of errors on a typing test. What is the median? Interpret this value in the situation.

The data set represents the heights, in centimeters, of ten model bridges made for an engineering competition. What is the mean?

The box plot shows the test scores in Mr. Jordan's class. The appropriate measure of center is the ​ ​ ​ (a)  

• Median

• Mode

• Mean

• Range

• IQR

The frequency table shows the gas mileages of several vehicles. The data would be ​ (a)   so the best measure of center would be the ​ (b)   and the best measure of variation would be the ​ (c)   ​ ​

• Skewed Right

• median

• Interquartile Range

• Skewed Left

• Symmetrical

• Mean

• Mean Absolute Deviation

Annabel is comparing the distances that two electric cars can travel after the battery is fully charged. Use the measures of center to make an inference about the data. Use the drop-down menus to complete your answer. ​ (a)   can travel further than ​ (b)   after the battery is fully charged.

• Car B

• Car A

The tennis team needs to raise money by selling raffle tickets. The box plots show how many tickets were sold over 15 days by 3 students. What is the appropriate measure of center for Daniel?​ (a)  

• Median

• Mean

• Range

• IQR

The table lists five counties with the largest area in Texas. Which measure of center/variation best represents the average size of these counties?

• mean

• IQR

• mode

• range

Read the definition and match each word to the correct box.

• Range

• Measure of center that lies in the middle of a set of data arranged in order

• Median

• Measure of variation that represents the spread of a set of data.

• Mode

• Measure of center that represents the fair share of a set of data.

• Mean

• Measure of center that occurs most often in a data set.