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9 September, 05:22

If a coin is flipped 20 times and a head comes up 7 times, what is the relative frequency of a head coming up?

A. 0.45

B. 0.35

C. 0.30

D. 0.40

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Answers (1)
  1. 9 September, 05:35
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    Relative frequency is the absolute frequency (i. e. the number of times of the wanted result) divided by the total number of events.

    In this case you have to calculate: the number of heads that came up divided by the number of times the coin was flipped.

    Number of times the coin was flipped: 20

    Numbef of times head came up: 7

    Relative frequency: 7 / 20 = 0.35, which is the option B.
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