MyMathKidK-8 Curriculum
Common Core: 7.SP
Answer Key
Grade 7 • statistics • Easy

Random Sampling 1

Understand random samples

10 problems

1.
Item 1
4
Item 2
13
Item 3
16
Item 4
16
Item 5
17
Item 6
27
Item 7
28

Find the mean of: 4, 13, 16, 16, 17, 27, 28

2.
Item 1
2
Item 2
5
Item 3
11
Item 4
12
Item 5
18
Item 6
28
Item 7
29

Find the mean of: 2, 5, 11, 12, 18, 28, 29

3.
Item 1
1
Item 2
5
Item 3
10
Item 4
11
Item 5
18
Item 6
20
Item 7
24

Find the mean of: 1, 5, 10, 11, 18, 20, 24

4.
Item 1
2
Item 2
4
Item 3
9
Item 4
17
Item 5
19
Item 6
22
Item 7
28

Find the mean of: 2, 4, 9, 17, 19, 22, 28

5.
Item 1
3
Item 2
7
Item 3
14
Item 4
19
Item 5
22
Item 6
24
Item 7
24

Find the mean of: 3, 7, 14, 19, 22, 24, 24

6.
Item 1
1
Item 2
4
Item 3
6
Item 4
6
Item 5
10
Item 6
16
Item 7
25

Find the mean of: 1, 4, 6, 6, 10, 16, 25

7.
Item 1
4
Item 2
5
Item 3
5
Item 4
7
Item 5
10
Item 6
21
Item 7
27

Find the mean of: 4, 5, 5, 7, 10, 21, 27

8.
Item 1
3
Item 2
4
Item 3
6
Item 4
7
Item 5
13
Item 6
29
Item 7
29

Find the mean of: 3, 4, 6, 7, 13, 29, 29

9.
Item 1
1
Item 2
2
Item 3
7
Item 4
20
Item 5
23
Item 6
24
Item 7
27

Find the mean of: 1, 2, 7, 20, 23, 24, 27

10.
Item 1
4
Item 2
9
Item 3
9
Item 4
20
Item 5
21
Item 6
26
Item 7
28

Find the mean of: 4, 9, 9, 20, 21, 26, 28

Math Worksheets for Kids • Worksheet #sampling-1