The overhead reach distances of adult females are normally distributed with a mean of 200 cm and a standard deviation of 7.8 cm. a. find the probability that an individual distance is > 210.00 cm. b. find the probability that the mean for 25 randomly selected distances is > 197.80 cm. c. why can the normal distribution be used in part (b), even though the sample size does not exceed 30?

Efficient homemakers ltd. makes canvas wallets and leather wallets as part of a money-making project. for the canvas wallets, they need two yards of canvas and two yards of leather. for the leather wallets, they need four yards of leather and three yards of canvas. their production unit has purchased 44 yards of leather and 40 yards of canvas. let x be the number of leather wallets and y be the number of canvas wallets. draw the graph showing the feasible region to represent the number of the leather and canvas wallets that can be produced.