Refer to Exercise 4.10. Does P(either A or B occurs)= P(A)+ P(B)? Why or why not?
Exercise 4.10
Consider the following outcomes for an experiment:
Outcome | 1 | 2 | 3 | 4 | 5 |
Probability | .20 | .25 | .15 | .10 | .30 |
Let event A consist of outcomes 1, 3, and 5 and event B consist of outcomes 4 and 5.
a. Find P(A)and P(B).
b. Find P(both A and B occur).
c. Find P(either A orB occurs).
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