Let A and B be events with P (A) = 0.375; P (B) = 0.5 and. Calculate. .
0.625
0.5
0.125
0.375
To calculate P(A or B), we can use the formula:
P(A or B) = P(A) + P(B) - P(A and B)
Given that P(A) = 0.375, P(B) = 0.5, and assuming that the events A and B are independent, we can calculate P(A and B) as:
P(A and B) = P(A) * P(B)
P(A and B) = 0.375 * 0.5
P(A and B) = 0.1875
Now, we can plug these values into the formula:
P(A or B) = 0.375 + 0.5 - 0.1875
P(A or B) = 0.6875
The probability of either event A or event B happening is 0.6875.