Mean Absolute Deviation, Standard Deviation, Variance

Given a variance of 64, what is the standard deviation?

• 8

• 4096

• 0

• 6.8

What is the standard deviation for the data given:
5, 10, 7, 12, 0, 20, 15, 22, 8, 2

• 6.89

• 10.1

• 7.26

• 9

What is the variance for the data given:
5, 10, 7, 12, 0, 20, 15, 22, 8, 2

• 47.47

• 102.01

• 52.77

• 81

Which of the following is a measure of variability?

• mean

• median

• mode

• standard deviation

What is the third step (4-5) when calculating the Mean Absolute Deviation?

• Find the distance each value is from the mean

• Find the mean of the data

• Find the mean of the new set of numbers

  (add, divide)

How do you calculate the standard deviation?

• Divide the variance by 2.

• Its a long process and I can't explain it right now.

• Find the mean and multiply it by the variance.

• Take the square root of the variance.

What is the standard deviation for the data given:
{12, 13, 29, 18, 61, 35, 21}

• 293.67

• 15.87

• 17.14

• 41.98

If the standard deviation of a data set is 4, what is the variance?

• 2

• 16

• 4

What does this symbol represent?

• Variance

• Standard Deviation

• Mean Absolute Deviation

• Sigma

Before you can begin calculating the variance, you must first:

• find the mean

• find the median

• find the mode

• find the range