A bank's loan officer rates applicants for credit, the ratings are normally distributed with a mean of 200 and a standard deviation of 50. if 40 different applicants are randomly selected, find the probability that their mean is above 215.

The table shows the distances travelled by a paper aeroplane. a. find the range and interquartile range of the data. the range is feet. the interquartile range is __feet. b. interpret the range and interquartile range of the data. __ feet the distances travelled by the paper aeroplane varied by no more than__ feet. the middle half of the distances travelled by the paper aeroplane varied by no more than __ feet.