Question

Given the discrete probability distribution above, determine the following:

(a) P(x≤21)= _____
(b) P(x≥19)= _____
(c) P(x=20)= _____

Answer 1

To solve this problem, we need to use the given discrete probability distribution. The probabilities can be calculated by summing or subtracting the individual probabilities.

Step-by-step explanation:

To solve this problem, we need to use the given discrete probability distribution.

(a) P(x≤21) = P(x=20) + P(x=21) = 0.03 + 0.07 = 0.1

(b) P(x≥19) = 1 - P(x<19) = 1 - (P(x=18) + P(x=17)) = 1 - (0.1 + 0.05) = 0.85

(c) P(x=20) = 0.03