Find the area under the standard normal distribution curve b

Find the area under the standard normal distribution curve between z = 0.55 and z = 1.20The area between z = 0.55 and z = 1.20 is

Solution

Using table/technology, the left tailed areas for these z scores are

P(z<-1.20) = 0.11506967
P(z<-0.55) = 0.291159687

Thus, subtracting these,

P(-1.20<z<-0.55) = 0.176090017 [ANSWER]