Question 2 a) Describe a discrete random variable. b) The random variable X has p.m.f, P(X= x) as shown in the table: X
Posted: Thu May 05, 2022 8:21 pm
Question 2 a) Describe a discrete random variable. b) The random variable X has p.m.f, P(X= x) as shown in the table: X -2 -1 0 1 C P(X=x) 0.1 0.3 0.4 0.1 Find the value of c if: i) E(X) = 0.3, ii) E(X²) = 1.8. A random variable X~ B(15, 0.35). Determine each of the following, i) P(X = 8) ii) P(X < 7) iii) P(X> 9) iv) P(5 < X < 10) c) 0.1