Sarah the Sub is the worst substitute teacher. She just can’t seem to get her students under control. But she is getting better...Last year Sarah got tied up & hung upside down by students 89 times. This year it only happened 74 times. What was the percent decrease in the number of times Sarah was tied up & hung upside down?Round to the nearest percent. A).16% C)18%
B).17% D).19%

Needmax 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.