Cowboy Bob owns a used car lot. There are currently 40 cars on his lot and the mean weight of those cars
is 3,200 pounds. Cowboy Bob sells 5 of the cars, and
the mean weight of the remaining cars is then 3,100
pounds. What is the mean weight, in pounds, of the 5
cars that were sold?

Cor d? ? me ? max recorded the heights of 500 male humans. he found that the heights were normally distributed around a mean of 177 centimeters. which statements about max’s data must be true? a) the median of max’s data is 250 b) more than half of the data points max recorded were 177 centimeters. c) a data point chosen at random is as likely to be above the mean as it is to be below the mean. d) every height within three standard deviations of the mean is equally likely to be chosen if a data point is selected at random.