The towing capacities (in pounds) of 25 four-wheel drive pickup trucks have a bell- shaped distribution, with a mean of 11830 pounds and a standard deviation of 2370
pounds. Use z-scores to determine if the towing capacities of the following randomly
selected four-wheel drive pickup trucks are unusual.
16500 pounds
18000 pounds
5500 pounds
11300 pounds

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.