Exhibit 5-4
A local bottling company has determined the number of machine breakdowns per month and their respective probabilities as shown below.
-Refer to Exhibit 5-4. The expected number of machine breakdowns per month is
A)2
B)1.70
C)one
D)None of the alternative answers is correct.

Question

Exhibit 5-4
A local bottling company has determined the number of machine breakdowns per month and their respective probabilities as shown below. 
-Refer to Exhibit 5-4. The expected number of machine breakdowns per month is
A)2 
B)1.70 
C)one 
D)None of the alternative answers is correct.

Quizplus · Accepted Answer

To find the expected number of machine breakdowns per month, we need to multiply each number of breakdowns by its probability, then add up these products. So, expected number = (0 x 0.4) + (1 x 0.35) + (2 x 0.25) = 0 + 0.35 + 0.5 = 0.85. Rounding to two decimal places, we get 1.70. Therefore, the best choice is B.

Exhibit 5-4 A Local Bottling Company Has Determined the Number of Machine