Question

An original data set has the values 11, 8, 7, 12, and 7. What would need to be added to each value to change the mean to ?
possible answers:
3
6
7
8

Answer 1

Please someone help I need to get this done or I don'g get to watch Doctor Who for a week

Answer 2

@MDoodler Can you help?

Answer 3

Oh you are changing the mean to 15 Dieu, I'm so stupid

Answer 4

I just need to know what the answer is

Answer 5

Please

Answer 6

You just have a question mark at the end. What are we changing the means to?

Answer 7

The mean right now is \[ \frac{7+7+8+11+12}{5} = 35.4\]

Answer 8

If you add 3 to each value
\[ \frac{10+10+11+14+15}{5} = 48 \]