4.You plan to conduct a poll to estimate the percentage of consumers who are satisfied with long-distance phone service. You want to be 90% confident that your sample percentage is within 2.5 percentage points of the true value, and a Roper poll suggests that this percentage should be about 85%. How large must your sample be

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

14

step-by-step explanation:

14 x 3 = 42

step-by-step explanation:

6.48/4 4 goes into 6.48 1.62 times