Measure of Variability - Variance

Measure of Variability - Variance

Multiple Choice

The difference between the highest and the lowest score is _______________________________.

• range

• standard deviation

• variance

• average deviation

Multiple Choice

How do you find the range of a set of numbers?

• Subtract the largest number from the smallest number

• It is the number that occurs most often

• Add all the numbers and divide by how many numbers there are

• Subtract the smallest number from the largest number

Fill in the Blank

What is the range?

Fill in the Blank

What is the range?

Fill in the Blank

What is the range?

Steps for finding variance

Write each step involved in finding the variance carefully. Use these steps to complete the activity sheet.

​Variance of Set 1

​Variance of Set 2

​Variance of Set 3

​Variance of Set 4