A student takes a measured volume of 3.00 M HCl to prepare a 500 ml sample of 180 M HCL What volume of 300 MHCI
did the student use to make the sample?
Use M, V;=MV
3.70 ml
16.7 ml
300 ml
833 ml

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.