Meh ! this is half my grade! subtract 16a+3 from 13a−5 . which is the correct answer?
−16a−2
16a−2
16a−8
−16a+8

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.