20. The bee population in a certain area is declining at an uninhibited rate of 36.5% per year. How long will it take for that population to be one-fourth of the initial population?
5.9 years
1.6 years
11.3 years
3.8 years

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.