SOLUTION: 13405 60263 70925 77990 63607 13936 92798 94624 27636 42422
Test show that 40% of people prefer Brand X toothpaste. Use the entire line of random numbers to e
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Question 464080: 13405 60263 70925 77990 63607 13936 92798 94624 27636 42422
Test show that 40% of people prefer Brand X toothpaste. Use the entire line of random numbers to estimate the probability that a randomly selected group of five students will contain at least 3 people who prefer Brand X. Let the digits 1 to 4 represent the people who prefer Brand X. (Write your answer as a percent)
Four groups out of 10 have at least three digits from 1 to 4.
Answer by reviewermath(1029) (Show Source): You can put this solution on YOUR website!
Let f(x) be the number of digits from 1 to 4 of the number x and
So f(13405) = 3 and g(13405) = 1
f(60263) = 2 and g(60263) = 0
f(70925) = 1 and g(70925) = 0
f(77990) = 0 and g(77990) = 0
f(63607) = 1 and g(63607) = 0
f(13936) = 3 and g(13936) = 1
f(92798) = 1 and g(92798) = 0
f(94624) = 3 and g(94624) = 1
f(27636) = 2 and g(27636) = 0
f(42422) = 5 and g(42444) = 1
Estimate of the probability that a randomly selected group of five students will contain at least 3 people who prefer Brand X is equal to = 40%
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