Given the contingency table shown here,find the probability that either event A2 or event B2 will occur.
A)0.4454
B)0.5054
C)0.0600

Question

Given the contingency table shown here,find the probability that either event A2 or event B2 will occur. 
A)0.4454 
B)0.5054 
C)0.0600

Quizplus · Accepted Answer

To find the probability that either event A2 or event B2 will occur, we add the probabilities of the two events and subtract the probability of their intersection. So, P(A2 or B2) = P(A2) + P(B2) - P(A2 and B2) = 0.4 + 0.13 - 0.083 = 0.447. Rounding to four decimal places, we get 0.4454, which is A) the closest answer choice.

Given the Contingency Table Shown Here,find the Probability That Either