Question

The probability that event M will not occur is 0.8 and the probability that event R will not occur is 0.6. If events M and R cannot both occur, which of the following is the probability that either event M or event Rwill occur?
a. 1/5
b. 2/5
c. 3/5
d. 4/5
e.12/25

Answer 1

Answer:

C. 3/5

Step-by-step explanation:

Probability that M will occur =1-0.8=0.2=1/5

Probability that R will occur = 1-0.6=0.4=2/5

Probability that either of them will occur= 1/5 + 2/5= 3/5