Each of

Question

7
students reported the number of movies they saw in the past year. Here is what they reported.
16
,
7
,
4
,
15
,
8
,
13
,
12
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Find the mean number of movies that the students saw.
If necessary, round your answer to the nearest tenth.

movies

Answer 1

To find the mean number of movies that the students saw, add up all of the reported numbers and then divide by the total number of students.

16 + 7 + 4 + 15 + 8 + 13 + 12 = 75

There are 7 students, so divide the sum by 7:

75 / 7 = 10.7

Therefore, the mean number of movies the students saw is 10.7.

Answer 2

A group of
6
students was asked, "How many hours did you watch television last week?" Here are their responses.
9
,
11
,
20
,
13
,
13
,
4
Find the mean number of hours for these students.
If necessary, round your answer to the nearest tenth.

hours

Answer 3

To find the mean number of hours the students watched television, add up all of the reported numbers and then divide by the total number of students.

9 + 11 + 20 + 13 + 13 + 4 = 70

There are 6 students, so divide the sum by 6:

70 / 6 = 11.7

Therefore, the mean number of hours the students watched television is 11.7.

Answer 4

A pet store has
8
cats. Here are their weights (in pounds).
11
,
10
,
10
,
15
,
13
,
14
,
15
,
11
Find the mean weight of these cats.
If necessary, round your answer to the nearest tenth.

pounds

Answer 5

To find the mean weight of the cats, add up all of the reported weights and then divide by the total number of cats.

11 + 10 + 10 + 15 + 13 + 14 + 15 + 11 = 99

There are 8 cats, so divide the sum by 8:

99 / 8 = 12.4

Therefore, the mean weight of the cats is 12.4 pounds.