Leanne earned $400 and $500 in interest the last 2 years. how much interest must she earn this year so that her average earnings over the three year period is more than $600?

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.