## Christos one year ago A sample consists of 17 data entries and the mean is 6.5 . A new data entry, which has the value of 3, is added to the sample. Find the mean of the new sample.

1. anonymous

Do you want me to find the 17 data entries? /_^

2. anonymous

Do you need a solid 6.5? or could it come out as 6.47 and u round up the rest?

3. anonymous

I have 2 sets of digits where I get 6.52 and 6.47, just let me know if you want to know what they are.

4. anonymous

6.3055556..$((\sum_{i=1}^{i=17}X i ) + 3)/18= ?$

5. anonymous

you know $(\sum_{1}^{17} X i )/17 = 6.5 => (\sum_{1}^{17} X i ) = 17*6.5 = 110.5 ; substitute this \in the previous equation..you will get ur new mean :D$