2x + 3y = 9 -2x + 2y = 6 the y-coordinate of the solution to the system shown is a. 3 b. 5 c. 9 d. 15

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.