statistics
posted by Harley .
A student council is made up of 4 women and 6 men. One of the women is president of the council. A member of the council is selected at random at random to report to the Dean of Student Life.
What is the probability a woman is selected?
What is the probability a man is selected?
What is the probability that the president of the student council is selected?

Pr(woman)=4/10
Pr(man)=6/10 or 1Pr(woman)
Pr(president)=1/10 
Five students were randomly selected from a large university. The ACT scores for these students were 23, 12, 27, 32, and 26. Find the standard deviation for this sample data set. Round your final answer to two decimals, but do not round any value except the final answer.