A random variable X X\,X has the probability function:
P(X=x)=(2x−1)36x=1,2,3,4,5,6 P(X=x) = \frac{(2x-1)}{36} \quad x = 1, 2, 3, 4, 5, 6 P(X=x)=36(2x−1)x=1,2,3,4,5,6Construct a table giving the probability function of XXX.
Verify that P(1.4<X<3.9)=836\displaystyle P(1.4 < X < 3.9) = \frac{8}{36}P(1.4<X<3.9)=368
Construct a table for the cumulative distribution F(x)F(x)F(x)
215 exam-style questions on Edexcel A Level Maths Statistical Distributions, covering 6.1 Probability Distributions, 6.2 The Binomial Distribution, and 6.3 Cumulative Probabilities. Each one has a worked solution and a mark scheme showing where the marks go.