Statistics 3302

Question

The table below shows a probability density function for the discrete random variable X, the number of errors found in a machine during a monthly quality control inspection at a food production facility. What is the probability that X is 1, 2, or 3?

1. Provide the final answer as a fraction.

x	P(X = x)
0	1/10
1	3/10
2	1/20
3	3/20
4	2/5

Answer 1

Probability(1)+Probability(2)+Probability(3)

3/10+1/20+3/20