14) Fill in the blanks by standardizing the normally distributed variable

Dave drives to work each morning at about the same time. His commute time is normally distributed with a mean of 51 minutes and a standard deviation of 5 minutes. The percentage of time that his commute time is less than 37 minutes is equal to the area under the standard normal curve that lies to the ___ of __.

18) Find the indicated binomial probability. Round to five decimal places when necessary.

A company manufactures calculators in batches of 64 and there is a 4% rate of defects. Find the probability of getting exactly 3 defects in a batch.

19) Given that 28.4% of all possible observations of the variable are less than 19, determine the area under the density curve that lies to the right of 19.