To construct a line passing through point C that is parallel to the line AB, Han constructed the perpendicular bisector of AB and then drew line CD. Is CD guaranteed to be parallel to AB? Explain how you know.

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.