Choose appropriate statistical measures

I can ​select and use appropriate statistical measures.

​Outlier

a data value that ​is very different from the other values

Gary ​reviews the scores on his weekly quizzes. What measure should he use to get the best sense of how he is doing on his weekly quizzes?

John and Yoshi are computer lab partners. During a spreadsheet project, ​they decided to enter their French quiz scores on their shared tablet. Choose the best measure of variability for each of the boy's quiz scores.

A basketball team's score for a season are: ​44, 43, 42, 40, 42, 45, 39, 38, 18.

a) Find the mean, median, and mode. Which is the best measure?

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b) ​What measure of variability would be the best?

Each of five different stores sell a quart of milk for one of the following prices: ​$1.50, $1.55, $1.80, $1.70, $1.50.

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a) What are the mean, median, and mode? ​

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b) Which measure of center ​best describes the data set? Which measure of variability best describes the data set?

Using the dot plot:

a) Find the mean, median, and mode.

b) Identify a good measure of variability for this data. Find the value.

Using the table:

a) Find the mean, median, and mode for ​Jessie and Sam.

b) What is the best measure of center for Jessie/Sam.

c) What is the best measure of variability for Jessie/Sam. Find the value​