Consider the table.
Does the table represent a discrete probability distribution?
Calculate the variance of $X$X.
Hence calculate the standard deviation.
Give your answer to two decimal places.
Investigate situations that involve elements of chance: A calculating probabilities of independent, combined, and conditional events B calculating and interpreting expected values and standard deviations of discrete random variables C applying distributions such as the Poisson, binomial, and normal
Apply probability distributions in solving problems