Finding the M's

What is the formula to calculate the mean of a set of numbers?

• Product of numbers divided by the count of numbers

• Difference of numbers divided by the count of numbers

• Sum of numbers multiplied by the count of numbers

• Sum of numbers divided by the count of numbers

Find the mean of the following set of numbers: 5, 8, 12, 15, 20.

• 12

• 18

• 14

• 10

Answer explanation

What is the formula to calculate the median of a set of numbers?

• Arrange the numbers in ascending order and find the middle value.

• Find the average of all the numbers in the set.

• Multiply the largest and smallest numbers in the set.

• Add all the numbers in the set and divide by the total count.

Find the median of the following set of numbers: 3, 5, 7, 9, 11.

• 5

• 7

• 9

• 11

What is the mode of a set of numbers?

• The mode of a set of numbers is the average of all the numbers in the set.

• The mode of a set of numbers is the number that appears least frequently in the set.

• The mode of a set of numbers is the middle number in the set.

• The mode of a set of numbers is the number that appears most frequently in the set.

Find the mode of the following set of numbers: 2, 4, 6, 4, 8, 4.

• 2

• 6

• 8

• 4

What is the formula to calculate the range of a set of numbers?

• Range = Maximum value * Minimum value

• Range = Maximum value + Minimum value

• Range = Maximum value - Minimum value

• Range = Maximum value / Minimum value

Find the range of the following set of numbers: 10, 15, 20, 25, 30.

• 10

• 20

• 15

• 25

Which measure of central tendency is affected by outliers?

• median

• mode

• mean

• range

True or False: The mode can be used for both numerical and categorical data.

• Only for categorical data

• Only for numerical data

• False

• True