Question

Stephen surveyed his friends to see how many hours of video games they played last week. He recorded his results in this table.
Jack:4.5
Mike:6.25
Adam:3
Jim:2.5
Marty:7
Ben:6.75
(3 points)
To find the MEAN, add up all the values and divide the sum by the number of values.

What is the total amount of hours played?

How many friends did he survey?

What is the MEAN number of hours they played video games?

Answer 1

To find the total amount of hours played, we will add all the individual hours together:

- Jack: 4.5 hours
- Mike: 6.25 hours
- Adam: 3 hours
- Jim: 2.5 hours
- Marty: 7 hours
- Ben: 6.75 hours

Now we sum these values:

\[
4.5 + 6.25 + 3 + 2.5 + 7 + 6.75 = 30
\]

So, the total amount of hours played is **30 hours**.

Next, to find out how many friends Stephen surveyed, we count the number of individuals listed:

- Jack
- Mike
- Adam
- Jim
- Marty
- Ben

There are **6 friends** surveyed.

Now, to calculate the MEAN number of hours they played, we'll divide the total hours by the number of friends:

\[
\text{MEAN} = \frac{\text{Total hours}}{\text{Number of friends}} = \frac{30}{6} = 5
\]

Thus, the MEAN number of hours they played video games is **5 hours**.

To summarize:
- **Total hours played:** 30 hours
- **Number of friends surveyed:** 6
- **MEAN number of hours played:** 5 hours