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13 August, 21:13

What is the Q1 (first quartile) for the data set?

11, 6, 19, 14, 21, 7, 13, 15, 15

A. 8

B. 9

C. 15

D. 17

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Answers (1)
  1. 14 August, 00:56
    0
    The first quartile, (also written as Q1), is the number for which 25% of values in the data set. The f irst quartile is 9 so B is the answer.
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