Question

Josiah asked his friends how many books they have read so far this year. This is the data he collected: 9, 10, 14, 9, 12, 10.13 Find the mean of the number of books read by Josiah's friends. Explain how you found the mean.​

Answer 1

9+10+14+9+12+10+13= 77… then divide 77 by how many numbers which is 7 so 77 divide by 7 which the answer is 11

Answer 2

Mean of the given data is equals to 11.

What is mean?

"Mean is defined as the sum of all the numbers given in data dividing by total numbers of number given , it is also known as average pf the data."

Formula used

Mean = $\frac{Sum of all the numbers}{total numbers of number}$

According to the question,

Data collection = 9, 10, 14, 9, 12, 10, 13

Total numbers = 7

Substitute the value in the formula of mean we get,

$Mean =\frac{9+10+14+9+12+10+13}{7}$

         $=\frac{77}{7}$

         = 11

Hence, mean of the given data is equals to 11.

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