A rectangular box has dimensions 12 by 16 by 21, as shown here: 12
16
21
Find the length of the diagonal, shown blue dashed, connecting a pair of opposite corners.
Hint: First find the lengths of the heavy red lines. You will use Pythagoras' Theorem twice.
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What is the percentile for data value 6 in the following data set? 4 13 8 6 4 4 13 6 4 13 2 13 15 5 9 4 12 8 6 13 40 25 35 62

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