A number from 1-20 is chosen at random. What is the probability that it is not prime number.

Question

A number from 1-20 is chosen at
random. What is the probability
that it is not prime number.

in progress 0
Dulcie 5 years 2021-09-03T05:49:24+00:00 1 Answers 18 views 0

Answers ( )

  1. Adela
    0
    2021-09-03T05:51:12+00:00
    Reply

    Answer:

    There are 12 composite (and 8 primes) in the first twenty whole numbers. So the probability of randomly choosing a non-prime is 12/20 or 60%.

Leave an answer

Browse

Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )