variance, SD, Range

What is the formula for Range?

• Maximum + Minimum

• Maximum × Minimum

• Maximum – Minimum

• (Maximum + Minimum)/2

If the data is: 2, 4, 6, 8, 10 What is the Range?

• 8

• 10

• 12

• 6

Which of the following measures the spread of data using squared differences from the mean?

• Variance

• Mean

• Median

• Mode

What is the Standard Deviation?

• The square of the Variance

• The cube of the Variance

• The square root of the Variance

• The Variance divided by N

If the Standard Deviation is 0, what does that mean?

• All the values are the same

• The values are random

• There is one Outlier

• The Mean is zero