1. a) Let X be a Normal random variable with mean 20 and standard deviation 2. Find P(X > 24). (1 mark) 7e 7x f(x)= Osx

[answerhappygod]

1 A Let X Be A Normal Random Variable With Mean 20 And Standard Deviation 2 Find P X 24 1 Mark 7e 7x F X Osx 1 (57.55 KiB) Viewed 97 times

1. a) Let X be a Normal random variable with mean 20 and standard deviation 2. Find P(X > 24). (1 mark) 7e 7x f(x)= Osx otherwise 0 b) Suppose a random variable X has a probability density function: Find E(X). E(X)= ( x f(x)dx (2 marks) .x=0 c) A random variable X has the probability mass function: r = 1 The mean of X is: 2 1 X 5 10 2 1 x 5 10 2 1 -X 5 10 2 1 X 5 10 0 f(x) = x = 2 X = 3 otherwise (2 marks)