Suppose that mountaineering expeditions fail due to three mutually exclusive events. The probability that an expedition will fail due to bad weather bad weather conditions is 0.6. The probability that it fails due to injuries to the climbers is 0.25. Finally, the probability of failure due to insufficient or lost or lost equipment is 0.15. It is assumed that last summer four expeditions failed in their attempt to climb Mount Logan, the highest point in highest point in Canada. 1. What is the probability that two of the failures were due to bad weather and two were due to the other two due to equipment failure? 2. What is the probability that exactly two failures are caused by adverse weather conditions?