Statistics - Solve for Sum from Mean and Count (Level 2)

This math topic focuses on calculating the total sum of numbers given their mean and count. It includes problems where students are asked to determine the sum of a specific number of values based on their known average. Primarily, it reinforces understanding of the relationship between mean, count, and sum in practical application, enhancing skills in basic statistics and arithmetic operations integral to probability and statistics.

Work on practice problems directly here, or download the printable pdf worksheet to practice offline.

Statistics - Solve for Sum from Mean and Count Worksheet

Math worksheet on 'Statistics - Solve for Sum from Mean and Count (Level 2)'. Part of a broader unit on 'Probability and Statistics - Mean, Median, and Mode - Practice' Learn online: app.mobius.academy/math/units/probability_and_statistics_mean_median_mode_practice/

1

If 3 numbers have a mean of 5, what is their sum?

Solve the challenge

a

16

b

17.5

c

15

d

13

e

20

f

9.5

2

If 4 numbers have a mean of 7, what is their sum?

Solve the challenge

a

31

b

23

c

32.5

d

30

e

28

f

32

3

If 3 numbers have a mean of 7, what is their sum?

Solve the challenge

a

24.5

b

23.5

c

18.5

d

21

e

20

f

19.5

4

If 5 numbers have a mean of 4, what is their sum?

Solve the challenge

a

17

b

18.5

c

16.5

d

23.5

e

20

f

25.5

5

If 3 numbers have a mean of 6, what is their sum?

Solve the challenge

a

14.5

b

21

c

19

d

14

e

18

f

12.5

6

If 5 numbers have a mean of 6, what is their sum?

Solve the challenge

a

30

b

26.5

c

34

d

33.5

e

32.5

f

34.5

7

If 4 numbers have a mean of 6, what is their sum?

Solve the challenge

a

24.5

b

28.5

c

24

d

20.5

e

25

f

29.5