Two data sets contain an equal number of values. The double box-and-whisker plot represents the values in the data sets. Compare the data sets using measures of center and variation.

check the picture below.

well, the angle at the vertex d is clearly not a right-angle, let's check for the one at the vertex f which does look like,   however if it's indeed, that means ef is perpendicular to df, in which case their slopes will be negative reciprocal of each other.

so the negative reciprocal of the slope of ef is 1, however the slope of df is not 1, is 1/2, so nope, they're not perpendicular lines.

answer:

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a

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u take $30 minus $24. the answer/original($30)

p

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