1. How far off would you typically be if you used the best estimate to the scores on X in the sample?

2. What is the skew of the distribution?

(FREQUENCY DISTRIBUTION)

X	F	%
0	15	10
2	29	19.33
4	44	29.33
6	31	20.67
8	20	13.33
10	11	7.33
N=	150	100