Question 16

1. When a frequency curve for a variable distribution forms mirror images when split down the middle, the distribution is:

symmetrical.

negatively skewed.

positively skewed.

Non-symmetrical

3 points

Question 17

1. A statistic that tells you the degree to which the values of a variable distribution tend to fall either close or far away from the middle ofthe distribution is a measure of:

skewness.

central tendency.

dispersion.

normality.

3 points

Question 18

1. If the variance of a distribution is equal to 1,000,000, then the standard deviation of the distribution will be:

10

100

1,000

10,000

3 points

Question 19

1. 527716572

What is the mode of this distribution?

2

5

7

The distribution has three modes;2,5and 7.

3 points

Question 20

1. 527716572

What is the median of this distribution?

2

5

6

7