Question 71357
60% of its members made independent airline reservations last year.  If two members are selected at random, what is the probability that,
a)Both made reservations last year?
Prob = 0.6*0.6 = 0.36
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b)at least one made reservations last year?
P(at least one) = 1- P(none made a reservation) 
= 1- 0.4*0.4 
= 1 - 0.16
=0.84
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c)only one made a reservation last year?
Prob = 2C1 (0.6)(0.4) 
=2*0.24
=0.48
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Cheers,
Stan H.