Homework SourseQUESTION 4 Find each value requested for the distribution o
QUESTION #4 - Find each value requested for the distribution of scores in the following table.
n
S X
S X 2
X
f
5
1
4
2
3
3
2
5
1
3
| X | f |
|---|---|
| 5 | 1 |
| 4 | 2 |
| 3 | 3 |
| 2 | 5 |
| 1 | 3 |
Solution
Consider the table:
Thus,
n = sum(f) = 14 [answer]
Sum(x) = 35 [answer]
Sum(x^2) = 107 [answer]
| x | f | f x | f x^2 |
| 5 | 1 | 5 | 25 |
| 4 | 2 | 8 | 32 |
| 3 | 3 | 9 | 27 |
| 2 | 5 | 10 | 20 |
| 1 | 3 | 3 | 3 |
| Totals | 14 | 35 | 107 |
