Algebra I.2.B.05 -Measuring Variability for Symmetrical Distributions - Exit Ticket

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Estimate the mean of this data set above.

Remember that the standard deviation measures a typical deviation from the mean. The standard deviation of this data set above is either 3.2, 6.2, or 9.2. Which of these values is correct for the standard deviation?

3.2

6.2

9.2

Which data set above has the smallest standard deviation of the three?

Data Set 1

Data Set 2

Data Set 3

Justify your answer given in problem 3.

Which data set above has the largest standard deviation of the three?

Data Set 1

Data Set 2

Data Set 3

Justify your answer given in problem 5.

From EngageNY.org of the New York State Education Department. Grade Algebra i Mathematics Module 2, Topic A, Lesson 5. Internet. Available from https://www.engageny.org/resource/algebra-i-module-2...; accessed 17/Oct/2015.