about 20% of the population of a large country is nervous around strangers. if two people are randomly selected , what is the pr
obability both are nervous around strangers? what is the probability at least one is nervous around strangers?
2 answers:
The probability that both are nervous around strangers is (1/5)(1/5)=1/25
The probability that at least one is nervous around strangers is 1 - 1/25 = 24/25.
Answer: Probability both are nervous around strangers=0.04
Probability at least one is nervous around strangers = 0.36
Step-by-step explanation:
Given : The probability of the population of a large country is nervous around strangers : p= 20%=0.20
Sample size : n=2
Let x be the number of success.
Using Binomial , 
The probability both are nervous around strangers:-

The probability at least one is nervous around strangers :-

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