What is the mean absolute deviation of the data set?
(15. 16. 15. 8.6)
3 4 10 12

Kevin is an insurance salesman. when he sells a policy, he makes 20 percent of the policy premium (p) up front; then each year the policy is active, he receives 15 percent of the original premium. which equation could be used to figure his total commission on a policy that has been active for five years? c=0.80p c=0.20p + 0.15p c=0.35p + 4(0.15) c=0.95p

The standard deviation for a set of data is 5.5. the mean is 265. what is the margin of error?

2x minus y equals 6, x plus y equals negative 3