Statistics :

Question 1 1 pts Rochester, New York averages u = 21.9 inches of snow for the month of December. The distribution of snowfall amounts is approximately normal with a standard deviation of o = 6.5 inches. A local jewelry store advertised a refund of 50% off all purchases made in December, if they have more than 3 feet (36 inches) during the month. What is the probability that the jewelry store will have to pay off on its promise? d 15.00% \"1.50% o 3.25% \"I Not enough information given Question 4 1 pts A colony of laboratory rats contain 16 white rats and 9 spotted rats. Let's say you take a random sample of 2 rats from the colony. Both turn out to be white. If you then randomly select a third rat, what is the probability that the third rat will also be white? A 39.13% A Not enough information given A 61.00% A 64.00% Question 5 1 pts Jim's 10-minute walk to work each morning is mostly uneventful. However, each morning, he reaches a fork where he could go left or right. Both paths are equally long, and there is no advantage to taking one over the other. However, he can only choose one. Are the two possible events, turning left or right, mutually exclusive? A No A Yes