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

Steps for finding variance

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