In studying the causes of power failures, these data have been gathered. 5% are due to transformer damage 80% are due to line damage 1% involve both problems Based on these percentages, approximate the probability that a given power failure involves

(a) line damage given that there is transformer damage

(b) transformer damage given that there is line damage

(c) transformer damage but not line damage

(d) transformer damage given that there is no line damage

(e) transformer damage or line damage