Amanufacturer knows that their items have a normally distributed length, with a mean of 7.1 inches, and standard deviation of 1.7 inches.round your answer to four decimals.if 24 items is chosen at random, what is the probability that their mean length is less than 6.2 inches?

0.0047

Step-by-step explanation:

Given : A manufacturer knows that their items have a normally distributed length, with a mean of 7.1 inches, and standard deviation of 1.7 inches.

i.e.

Sample size : n= 24

Let be the sample mean.

Formula :

Then, the probability that their mean length is less than 6.2 inches will be :-

hence,. the required probability = 0.0047

no she should take the deal

Step-by-step explanation:

there are 5 bills in that bag and only 1 of them has a chance of being over the regular price where as 3 have a chance of being under the regurla price the odds a not in the girl scouts favor as she has a 60%chance of not getting a $1 and only a 20% chance of getting the $10.