Question

A group of 5 students was asked, "How many hours did you watch television last week?" Here are their responses.7,13,5,20 ,14 Find the mean number of hours for these students.If necessary, round your answer to the nearest tenth.

Answer 1

The rule of the mean of some data is

$mean=\frac{sum}{number}$

Since the given data is

$7,13,5,20,14$

There are 5 numbers, then

Number = 5

Add them to find the sum

$\begin{gathered} Sum=7+13+5+20+14 \\ \\ Sum=59 \end{gathered}$

Substitute them in the rule of mean

$\begin{gathered} mean=\frac{59}{5} \\ \\ mean=11.8 \end{gathered}$

The mean number of hours for these students is 11.8 hour