Solve for Mean from Sum and Count (Level 3)

This math topic focuses on calculating the mean (average) of a set of numbers given their sum and count. By dividing the sum of values by the number of values in each problem, students practice determining the mean. The topic includes multiple-choice questions where learners must select the correct mean for sets of 3, 4, or 5 numbers with different total sums. This topic is essential for understanding basic statistical concepts and is part of a larger unit on mean, median, and mode within probability and statistics.

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

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Statistics - Solve for Mean from Sum and Count Worksheet

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Math worksheet on 'Statistics - Solve for Mean from Sum and Count (Level 3)'. 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 5 numbers add up to 45, what is the mean?
Solve the challenge
a
14.5
b
12.5
c
7
d
9
e
4
f
12
2
If 3 numbers add up to 30, what is the mean?
Solve the challenge
a
10
b
4
c
13.5
d
4.5
e
7
f
6
3
If 4 numbers add up to 36, what is the mean?
Solve the challenge
a
9
b
6
c
7
d
13.5
e
4
f
11
4
If 3 numbers add up to 33, what is the mean?
Solve the challenge
a
12.5
b
6
c
13.5
d
11
e
11.5
f
16.5
5
If 5 numbers add up to 35, what is the mean?
Solve the challenge
a
6.5
b
8.5
c
7
d
11
e
5
f
3.5
6
If 5 numbers add up to 55, what is the mean?
Solve the challenge
a
13
b
8
c
10
d
6
e
5
f
11
7
If 4 numbers add up to 20, what is the mean?
Solve the challenge
a
9
b
5
c
7
d
10.5
e
1
f
2.5