114 61. The average heart rate for adults is 72 bpm with standard deviation of 6bpm. The distribution of heart rates is Normal. (a) What is the probability that a randomly selected heart rate is less than 60 bpm? (b) What is the probability that a randomly selected heart rate is between 70 and 80 bpm? (c) What is the 40th percentile of heart rates? 62. A particular bakery makes a very popular peanut butter pie. Suppose daily demand follows a Normal distribution with mean 43 pies and standard deviation 5 pies. (a) What is the probability that the demand is between 35 and 40 peanut butter pies in a day? (b) What is the probability that the demand is greater than 50 pies a day? (c) What is the demand that has a 1% chance of being exceeded?

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Cylinders

A cylinder is a three-dimensional solid shape with two parallel and congruent circular bases, joined by a curved surface at a fixed distance. A cylinder has an infinite curvilinear surface.

Cones

A cone is a three-dimensional solid shape having a flat base and a pointed edge at the top. The flat base of the cone tapers smoothly to form the pointed edge known as the apex. The flat base of the cone can either be circular or elliptical. A cone is drawn by joining the apex to all points on the base, using segments, lines, or half-lines, provided that the apex and the base both are in different planes.