Question

Find the mean number of hrs for these students if necessary round your answer to the nearest tenth

Answer 1

11.1

Explanation:

What is mean?

The mean is simply the average of a given set of numbers

To find the mean we find the sum of the given numbers and divide that by the number of given values.

Finding the mean.

Given set of values:

• 18, 7, 6, 13, 8, 17, 9

Mean:

• Sum of values/Number of values

• (18 + 7 + 6 + 13 + 8 + 17 + 9)/7
• 78/7
• 11.1 (rounded to the nearest tenth)

The mean of the number of hours the students watched of tv is 11.1 hours

Answer 2

`\huge\boxed{\sf Mean = 11.1 \ hours}`

Explanation:

Given data:

18, 7, 6, 13, 8, 17, 9

Mean:

`\displaystyle Mean = (Sum \ of \ data)/(No. \ of \ data) \\\\Mean = (18+7+6+13+8+17+9)/(7) \\\\Mean = (78)/(7) \\\\Mean = 11.1 \ hours\\\\\rule[225]{225}{2}`