In how many ways can 4 people be chosen and arranged in a straight line if there are 13 people from whom to choose?

Question

In how many ways can 4 people be chosen and arranged in a straight line if there are 13 people from whom to choose?

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Euphemia 3 years 2021-08-02T15:17:11+00:00 1 Answers 18 views 0

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  1. haidang
    0
    2021-08-02T15:18:21+00:00
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    Answer:

    17160

    Step-by-step explanation:

    Total number = n = 13

    Number required = r= 4

    If the number required does not have a specific order then combinations is chosen.

    If a specific arrangement is required then permutations is used.

    Here a  specific arrangement is mentioned therefore

    13P4= 17160

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