The probability of passing the math class of Professor Jones is 67%, the probability of passing Professor Smith's physics class is 39%, and the probability of passing both is 30%.

Question

The probability of passing the math class of Professor Jones is 67%, the probability of passing Professor Smith's physics class is 39%, and the probability of passing both is 30%. What is the probability of passing one or the other?

The probability of passing one or the other is  %.

Answer 1

67+39-30 = 76