When choosing a four-number PIN. (personal identification number) how many different PINS are possible? (The choice

Question

When choosing a four-number PIN.
(personal identification number)
how many different PINS are possible?

(The choice of digits 0-9 are available for each number.)

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Huyền Thanh 5 years 2021-08-17T00:59:47+00:00 1 Answers 15 views 0

Answers ( )

  1. kiet
    0
    2021-08-17T01:01:38+00:00
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    Answer:

    10,000 different PINS are possible

    Step-by-step explanation:

    Fundamental counting principle:

    States that if there are p ways to do a thing, and q ways to do another thing, and these two things are independent, there are p*q ways to do both things.

    In this question:

    Four each digit on the PIN, there are 10 possible outcomes. The digits are independent. So, by the fundamental counting principle:

    T = 10^4 = 10000

    10,000 different PINS are possible

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