Math 209 6 2 22 Statistics Tutorial Normal Distributions Invnorm

Question

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On question 18 they provide the area on the right now we need to know the area on the left because the

Last section we were focusing on the standard

... of that to get the right z-score so

This problem is from the following book: http://goo.gl/t9pfIj We calculate areas on the standard

The time spent in days waiting for a kidney transplant for people ages 30 to 49 is

The weights of bags of raisins are

On question 24 we are looking at a

... and x2 so let's look at x1 first we need to type

On question 19 we are given an area on the right so we need to type

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

The monthly utility bills in a city are

Math 209 : 6.2 #2 (Statistics Tutorial : Normal Distributions, normalcdf)

... two tails so if we divide that by

Find the z-score that corresponds to the cumulative area so 29 is 0.4364 the picture looks like this we would type

... percent of the distribution's area to its left so our picture looks like this and we would type

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

The random variable x is