A manufacturer knows that their items have a normally distributed lifespan, with a mean of 13.6 years, and standard deviation of 0.5 years. If 22 items are picked at random, 5% of the time their mean life will be less than how many years?

c

step-by-step explanation:

it isn't d, because the interquartile range is from 27-57. and the interquartile range is basically half the data, it's pretty obvious.

it isn't b, because like i said earlier, the interquartile range is from 27-57. 57-27 is 30. the real range has to be longer

not a either. although it looks like it, 3/4 of the data is not greater than 27. but if c is wrong than this should be correct

the correct answer is c, because 13 is the point in which the plot starts

answer. d.289 hope that

beth buys 10 x shirts and still has more than 100 in her account