Quiz Rmarkdown chapter 4

Question 1a.

pnorm(1.5,0,1,)-pnorm(-1.5,0,1,)

## [1] 0.8663856

Question 1b.

qnorm(0.9,16,1.8)

## [1] 18.30679

Question 2b.

1-pnorm(79,94,6.8)

## [1] 0.9863039

Question 2c.

qnorm(0.9,94,6.8)

## [1] 102.7146