A1 Unit 1 ILC Review

Which statistical measure is most appropriate for measuring the center of this data?

• mean

• median

Answer explanation

Because this distribution has outliers, the mean will be distorted by the extreme values. Therefore, the median is the more appropriate measure of center.

What is the appropriate measure of center for the data set?

• Mean, because there is not an outlier

• Median, because there is not an outlier

• Mean, because there is an outlier

• Median, because there is an outlier

Which statistical measure is most appropriate for measuring the center of this data?

• mean

• median

Answer explanation

Because distribution is symmetric and not skewed, we use the mean, which gives equal weight to all values in the data set.

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 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

What is the range?

• average
• biggest-smallest
• the middle #
• # happening the most

Select the (2) measures of CENTER.

• Mean

• Median

• IQR

• Range

If a dot plot is symmetric, what measure of center should be used to describe the data?

• MEAN

• MEDIAN

The data set represents the number of hours that fifteen students walked during a two-week period.

• 6 6 7 8 8 8 9 10 10 12 13 14 15 16 30

The median is 10 hours, Q1 is 8, Q3 is 14, and the IQR is 6 hours. Are there any outliers in the data? 

Select the correct choice.

• Yes

• No

The data set represents the number of hours that fifteen students walked during a two-week period.

• 6 6 7 8 8 8 9 10 10 12 13 14 15 16 30

The median is 10 hours, Q1 is 8, Q3 is 14, and the IQR is 6 hours. Are there any outliers in the data? 

If so, what is it?

• 30

• No outliers

• 6

• 13