Math 208 6 2 7 Elementary Statistics Tutorial Normal Distributions Normalcdf

The random variable x is

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

The monthly utility bills in a city are

Last section we were focusing on the standard

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

Sat

...

This

The next topic is the

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

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

... a grouped frequency

6.2 Elementary Statistics Standard Normal Distribution

Find the probability of z occurring in the indicated region of the standard

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

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

... two tails so if we divide that by

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

The weights of bags of raisins are