Which expression is equivalent to x1/2y5/2 in simplified form?
a. radical xy^5
b. radical xy
c. y^2 radical xy
d. y^4 radical xy

Given a normal distribution with µ =50 and σ =4, what is the probability that 5% of the values are less than what x values? between what two x values (symmetrically distributed around the mean) are 95 % of the values? instructions: show all your work as to how you have reached your answer. don’t simply state the results. show graphs where necessary.