5. The school cafeteria offers vanilla swirl and chocolate ice cream, with and without fudge sauce on Fridays. The cafeteria manager kept a record of the 150 students who ordered ice cream on Friday to prepare for the next
weeks' order of ice cream. Use the information in the table to find the following probabilities for a randomly
chosen ice cream order.
Wim fudou
SOUCO
Without udge
Sauce
Vanuits sur
Chocolate
30
20
a. Find the probability that an order will include fudge sauce.
b. Find the probability that the order will include fudge sauce given that it is for vanilla swirl ice cream.
c. Find the probability that an order will be for vanilla swirl ice cream, given that it will not include fudge sauce.

The accompanying normal probability plot was constructed from a sample of 30 readings on tension for mesh screens behind the surface of video display tubes used in computer monitors. does it appear plausible that the tension distribution is normal? the given probability is has a significant downward curve, so it is plausible that the tension distribution is normal. the given probability is has a significant downward curve, so it is not plausible that the tension distribution is normal. the given probability is quite linear, so it is plausible that the tension distribution is normal. the given probability is has a significant upward curve, so it is not plausible that the tension distribution is normal. the given probability is quite linear, so it is not plausible that the tension distribution is normal.