Understanding Statistics Concepts

What is the mean of the numbers 4, 8, 6, 5, and 3?

• 5.5

• 6.0

• 4.5

• 5.2

Find the median of the following set: 12, 15, 11, 14, 13.

• 12

• 14

• 15

• 13

What is the mode of the numbers 2, 3, 4, 4, 5, 5, 5, 6?

• 4

• 6

• 3

• 5

Calculate the range of the data set: 20, 35, 15, 40, 25.

• 30

• 25

• 15

• 45

What is the interquartile range (IQR) of the following data: 10, 20, 30, 40, 50?

• 35

• 15

• 25

• 20

If the mean of a set of numbers is 10 and there are 5 numbers, what is the total sum of the numbers?

• 40

• 30

• 60

• 50

What is the mean absolute deviation (MAD) of the numbers 1, 2, 3, 4, and 5?

• 0.8

• 1.5

• 2.5

• 1.2

How do you find the median in a data set with an even number of values?

• The median is the average of the two middle values.

• The median is the first value in the data set.

• The median is the sum of all values divided by the number of values.

• The median is the last value in the data set.