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. The probability that either E occurs or F occurs is
A
0.31
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B
0.41
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C
0.69
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D
0.89
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Solution
The correct option is B0.41 Given, P(E)=0.25,P(F)=0.30,P(E and F)=0.14 Thus, P(E or F)=P(E)+P(F)−P(E and F) P(E or F)=0.25+0.30−0.14 P(E or F)=0.45 Thus, probability of occurrence of E or F=0.41