Exploring Central Tendency Concepts

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

• 5.2

• 6.0

• 7.2

• 4.5

Calculate the mean of these numbers: 10, 20, 30, 40, 50.

• 20

• 40

• 30

• 25

If the mean of a data set is 15 and there are 5 numbers, what is the total sum of the numbers?

• 75

• 90

• 60

• 45

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

• 14

• 15

• 13

• 12

What is the median of the following numbers: 7, 9, 5, 3, 8, 6?

• 5.5

• 8.0

• 6.5

• 7.0

In a data set of 9 numbers, if the middle number is 20, what is the median?

• 20

• 15

• 25

• 30

Determine the mode of the following data set: 2, 3, 4, 4, 5, 5, 5, 6.

• 5

• 6

• 4

• 3

What is the mode of this set: 1, 2, 2, 3, 4, 4, 4, 5, 5?

• 2

• 3

• 5

• 4

If a data set has no repeating numbers, what can be said about its mode?

• The mode is the highest number.

• The mode is the average of the numbers.

• The mode is undefined.

• The mode is the sum of all numbers.

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

• Average of the two middle values

• Choose the highest value in the set

• Sum of all values divided by the number of values

• Select the first value in the ordered list