Research conducted estimated that 1 out of every 20 adults is unable to swim.
What is the probability that 1 adult selected at random cannot swim?
what is the probability that 2 adults selected at random cannot swim?
Answers
Given : Research conducted estimated that 1 out of every 20 adults is unable to swim.
To Find : probability that 1 adult selected at random cannot swim?
what is the probability that 2 adults selected at random cannot swim?
Solution:
1 out of every 20 adults is unable to swim.
=> probability can not swim = 1/20
probability can swim = 1 - 1/20 = 19/20
probability that 1 adult selected at random cannot swim = 1/20
probability that 2 adults selected at random cannot swim
= (1/20)(1/20)
= 1/400
probability that 1 adult selected at random cannot swim = 1/20
probability that 2 adults selected at random cannot swim = 1/400
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