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30 November, 21:08

A stack of cards is numbered 1 to 21. Leilani pulls one card from the stack. What is the best approximation for the probability that the card is a multiple of 5?

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  1. 1 December, 00:48
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    The approximation is 0.2 (real value is 0.19)

    Step-by-step explanation:

    In this question, we are to calculate the best approximation if in a pack of cards labeled 1 to 21, the card selected is a multiple of 5

    First we know that the total number of options in our sample space is 21; from 1 to 21

    now let's get the multiples of 5. we have 5,10,15 and 20

    The probability of selecting a multiple of 5 is thus; 4/21. This can be approximately be said to be 0.2 (actual value is 0.19)
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