Question

Twenty students were surveyed to find out how many hours of TV they watch during a school week. The results are shown to the right. Answer the following questions and round your answers to the nearest half hour. The mean of the data is
____ hours.

Answer 1

Answer:

5 Hours

Explanation:

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Answer 2

The mean of the data is 5 hours

The Mean of a set of data can be obtained by dividing the sum of the data by the number of data i.e

$Mean = \frac{Summation of data }{number}$

With the above formula, we can obtain the mean of the data as follow:

Sum of data = 2 + 5 + 3 + 5 + 1 + 4 + 6 + 12 + 2 + 6 + 4 + 1 + 2 + 6 + 2 + 3 + 10 + 10 + 8 + 7

= 99

Number of data = 20

Mean =?

$Mean = \frac{Summation of data }{number of data}\\\\Mean = \frac{99}{20}$

Mean = 5 hours

Therefore, the mean of the data is 5 hours

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