(4 points) The speeds of vehicles passing through a construction zone are normally distributed with a mean of 48 miles per hour and standard deviation of 4 miles per hour.

Part A If 40% of vehicles passing through this construction zone exceed the speed limit, what is the speed limit at this construction zone? (Rounding the speed limit to 3 decimal places if possible)

___________ miles per hours

Part B About middle 50% of vehicles passing through this construction zone travel between _______ and _________ miles per hours (Rounding the speed limit to 3 decimal places if possible)

Part C What percent of vehicles passing through this construction zone travel at between 48 and 56 miles per hour? (Rounding the percentage to 2 decimal places if possible)

______ %

if you answer this question properly I will give excellent rating!