Probability density function of a random variable X is given below\(f\left( x \right) = \left\{ {\begin{array}{*{20}{c}} {0.25}&{if\;1 \le x \le 5}\\ 0&{otherwise} \end{array}} \right.\)P (X ≤ 4) is

Probability density function of a random variable X is given below\(f\

1.	Probability density function of a random variable X is given below\(f\left( x \right) = \left\{ {\begin{array}{*{20}{c}} {0.25}&{if\;1 \le x \le 5}\\ 0&{otherwise} \end{array}} \right.\)P (X ≤ 4) is
A.	3/4
B.	1/2
C.	1/4
D.	1/8
Answer» B. 1/2

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Probability density function of a random variable X is given below\(f\left( x \right) = \left\{ {\begin{array}{*{20}{c}} {0.25}&{if\;1 \le x \le 5}\\ 0&{otherwise} \end{array}} \right.\)P (X ≤ 4) is

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