Determine the following: (a) P(X< 2.8) (c) P(X<-2) 4-17. O Suppose that the cumulative distribution function of the random variable X is fo F(x) = {0.25x Osr<5 (b) P(X >1.5) (d) P(X>6) x<0

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A: i) Since, -2&lt;1.8&lt;2 , so F(1.8) follows 0.25x+0.5 P(X &lt; 1.8)=F(1.8)=0.25(1.8)+0.5=0.95

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