What is the probability that either E occurs or F occurs?

Question

The probability of occurrence of two events E and F are 0.25 and 0.30 respectively. The probability of their simultaneous occurrence is 0.14.

What is the probability that either E occurs or F occurs?

Answer 1

LET probability of event E and F are P(E) and P(F) RESPECTIVELY
AND P(EUF) IS THE PROBALITY OF OCCURENEC OF EVENT E OR EVENT F
AND

IS THE PROBABLITY OF OCCRENEC OF BOTH EVENT SIMUALTANEOUSLY

SINCE P(EUF) =P(E) +P(F) -

SO P(EUF)=.30 + .25 -.14
=.55 -.14
P(EUF)=.41