Math 208 6 2 2 Elementary Statistics Tutorial Normal Distributions Normalcdf

Number two says above 133 so the picture would look like this and we would type

The monthly utility bills in a city are

Last section we were focusing on the standard

Sat

This

... so the probability is actually exactly half so it should be point five or fifty percent but let's do the

... would look something like this and we would want to type

...

The random variable x is

Question 23 is different from the previous questions because we are no longer looking at the standard

Above a the lower number is a and the upper number is infinity because the

Math 208 : 6.2 #21 (Elementary Statistics Tutorial : Normal Distributions, invNorm)

6.2 Elementary Statistics Standard Normal Distribution

Math 208 : 6.2 #19, #20 (Elementary Statistics Tutorial : Normal Distributions, invNorm)

This

Number three says below 148. so the picture would look something like this and we would type

... answer by

... two tails so if we divide that by