Between 7 and 8 P.M., the average number of phone calls per minute is 4. The probability, that during one particular minute there will be no phone calls, is:

Find the probability of an event E if the odds for E is equal to the odds against

Suppose that the probability that a child living in an urban area in the United States is obese is 20%. If a social worker sees 15 children living in urban areas, what is the probability that 5 are obese? Enter response as .xxxx

In a jury trial, suppose the probability the defendant is convicted given guilt, is 0.95, and the probability the defendant is acquitted given innocence is 0.95. Suppose 90% of defendants are truly guilty. Given that the defendant is convicted, find the probability that he was actually guilty.