Let R be a continuous random variable with probability mass function: kr.3 f(r) = { b...

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Let R be a continuous random variable with probability mass function: kr.3 f(r) = { b 0 for 1,2,3,4 otherwise (a) Find the value of k and sketch the mass function of R. (b) Find E(R) and Var (R). (c) If Y = 5R-3, find E(Y) and Var (R). (d) Find P(2≤R < 6). Let R be a continuous random variable with probability mass function: kr.3 f(r) = { b 0 for 1,2,3,4 otherwise (a) Find the value of k and sketch the mass function of R. (b) Find E(R) and Var (R). (c) If Y = 5R-3, find E(Y) and Var (R). (d) Find P(2≤R < 6).

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a To find the value of k we use the fact that the total probability must be 1 fr dr 14 k... View the full answer