here a = 10 and b = 20
P(X < x) = (x - a)/(b -a)
P(15 <= X <= 19)
= P(X <= 19) - P(X <= 15)
= (19 - 10)/(20 - 10) - (15 - 10)/(20 - 10)
= 0.9 - 0.5
= 0.4
option C
18. suppose that the random variable X has a continuous uniform distribution over [ 10, 20...
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