Hello I need help with this Homework I also need to show all work .

3. Find the mean, median, and mode for the scores in the following frequency distribution table:

X	F
6	1
5	2
4	2
3	2
2	2
1	5

4. Find the mean, median, and mode for the scores in the following frequency distribution table:

X	f
8	1
7	1
6	2
5	5
4	2
3	2

6. A population of N=15 scores has X=120 . What is the population mean?

11. One sample has a mean of M=5 and a second sample has a mean of M=10 . The two samples are combined into a single set of scores.

A. What is the mean for the combined set if both of the original samples have n=5 scores?

B. What is the mean for the combined set if the first sample has n=4 scores and the second sample has n=6 ?

C. What is the mean for the combined set if the first sample has n=6 scores and the second sample has n=4 ?

12. A population of N=15 scores has a mean of U=8 . One score in the population is changed from X=20 to X=5 . What is the value for the new population mean?

15. A sample of n=7 scores has a mean of M=9 . If one new person with a score of X=1 is added to the sample, what is the value for the new mean?