GWD 18 extra questions

[Jackson0317]

If the probability is 0.54 that Stock A will increase in value during the next month and the probability is 0.68 that Stock B will increase in value during the next month, what is the greatest possible value for the probability that neither of these two events will occur?

A. 0.22
B. 0.32
C. 0.37
D. 0.46
E. 0.63

Ans B

Probability for A not: 1 - 0.54 = 0.46
Probability for B not: 1- 0.68 = 0.32

我以為最大的機率是.46? 還是因為這樣超過B的範圍不行.

[zazer.lin]

嗯...超過是不行滴...