Question 255362
The probability that an American CEO can transact business in a foreign language is .20. Ten American CEOs are chosen at random.
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P(a CEO cannot transact business) = 0.80
It's a binomial problem with n = 10  ; p = 0.8 ; x varies
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(a) What is the probability that none can transact business
in a foreign language?
P(x = 0) = 0.8^10 = 0.1074
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(b) That at least two can?
P(x >=2) = 1 - binomcdf(10,0.2,1) = 0.6242
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(c) That all 10 can?
P(x=10) = 0.2^10 = 0.000000102
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Cheers,
Stan H.
 
(d) Sketch the probability
distribution and discuss its appearance.