Statistics: Mean, Median, Mode and Skewness

What is the mean of the data set: 4, 8, 6, 5, 3?

• 4

• 5.2

• 6

• 5

Which of the following best defines the median of a data set?

• The most frequently occurring value

• The middle value when the data set is ordered

• The average of all values

• The range of the data set

Calculate the mode of the data set: 7, 9, 13, 9, 15, 9, 10.

• 7

• 9

• 13

• 15

What is the mean of the data set: 10, 20, 30, 40, 50?

• 25

• 30

• 35

• 40

If a data set is skewed to the right, which of the following is true?

• Mean < Median < Mode

• Mean > Median > Mode

• Mean = Median = Mode

• Mean < Median > Mode

Find the median of the data set: 3, 5, 7, 9, 11, 13, 15.

• 7

• 9

• 11

• 13

Which of the following best defines the mode of a data set?

• The average of all values

• The middle value when the data set is ordered

• The most frequently occurring value

• The range of the data set

Calculate the mean of the data set: 2, 4, 6, 8, 10.

• 5

• 6

• 7

• 8

Identify the skewness of the data set: 1, 2, 2, 3, 4, 5, 6, 7, 8, 9, 10.

• Symmetrical

• Skewed to the left

• Skewed to the right

• No skewness

What is the median of the data set: 12, 15, 14, 10, 18, 20, 22?

• 14

• 15

• 16

• 18