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Find the probability that a number selected at random from the numbers 1 to 25 is not a prime number when each of the given number is equally likely to be selected.

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ijohnh14
Hey! :)

Probability = 9/25
As No . of Prime Numbers Between 1-25 = 9
And Total no.Of Number Cards = 25

Hope this helps! :)
THEBRAINLY2
Total number ( 1,2,3,4,...., 25) = 25.
Out of 25 numbers prime numbers = 2,3,5,7,11,13,17,19,23 = 9 Prime numbers
So, remaining not a prime number are 25 - 9 = 16
Total number of possible outcomes = 25
and number of favourable outcomes = 16

[tex]P = \frac{ Number \: of \: favourable \: outcomes }{ Total \: number \: of \: possible \: outcomes} [/tex]

[tex]P(not \: a \: prime) = \frac{16}{25} [/tex]

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