Find the mean of the given probability distribution.
-The probabilities that a batch of 4 computers will contain 0, 1, 2, 3, and 4 defective computers are 0.5470, 0.3562, 0.0870, 0.0094, and 0.0004, respectively. Round answer to the nearest hundredth.
A)2.00
B)0.56
C)1.11
D)0.46

Question

Quizplus · Accepted Answer

To find the mean of the given probability distribution, multiply each outcome by its probability and sum these products. Mean = (0*0.5470) + (1*0.3562) + (2*0.0870) + (3*0.0094) + (4*0.0004) = 0 + 0.3562 + 0.174 + 0.0282 + 0.0016 = 0.56.

Find the Mean of the Given Probability Distribution