Table 13-1
The table below represents the probability distribution for machine breakdowns in a day of operation.

-According to Table 13-1, what is the cumulative probability of 2 breakdowns?
A)0.35
B)0.50
C)0.85
D)0.15

Question

Table 13-1
The table below represents the probability distribution for machine breakdowns in a day of operation.
 
-According to Table 13-1, what is the cumulative probability of 2 breakdowns?
A)0.35 
B)0.50 
C)0.85 
D)0.15

Quizplus · Accepted Answer

To find the cumulative probability of 2 breakdowns, we need to add the probabilities for 0, 1, and 2 breakdowns. 
0.1 + 0.4 + 0.35 = 0.85 
Therefore, the cumulative probability of 2 breakdowns is 0.85.

Table 13-1 The Table Below Represents the Probability Distribution for Machine Breakdowns