Question 380950
probability of total loss of one risky investment = .39


you take 5 risky investments, each with a probability of total loss of .39.


since the probability of total loss of each investment is .39, then the probability that the investment will not be a total loss is 1 - .39 = .61


the probability that none of the 5 investments will be a total loss is .61^5 = .08445963.


the probability that at least one of these investments will be a total loss is 1 - .61^5.


that probability would be .91554037