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Exam Questions Papers - Engineering

Q1:

The function shown in figure, can represent a probability density function for A __________ .

A A = 1/4

B A = 1/6

C A = 1/8

D A = 1/2

ANS:C - A = 1/8

The condition for the probability density of function d(x) is f(x)dx = 1 and is always non negative or the area under the curve f(x) is unity. ⇒ A x 6 + x 2 x 2A = 1 or 8A = 1, or A = .