A number is randomly selected from {1, 2, 3, 4, 5, 6, 7, 8, 9, 10). What is the COMPLEMENT of selecting a number greater than 7? Enter your answer as a FRACTION.
Mathematics · College · Tue Nov 03 2020
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A number is randomly selected from {1, 2, 3, 4, 5, 6, 7, 8, 9, 10).
So the total numbers are = 10
In a given set of numbers, the total numbers greater than 7 are=3
Then the probability of selecting a number greater than 7 is P(A) =3/10
So the COMPLEMENT of selecting a number greater than 7 will be
P'(A)=1-P(A)
P'(A)=1-(3/10)
P'(A)=7/10 answer.