You are given an array a representing heights of students. all the students are asked to stand in rows. the students arrive by one, sequentially (as their heights appear in a). for the i-th student, if there is a row in which all the students are taller than a[i], the student will stand in one of such rows. if there is no such row, the student will create a new row. your task is to find the minimum number of rows created. test cases

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.

Karen will divide her garden into equal parts. she will plant corn in 8/12 of the garden. what is the lowest number of parts she can divide her garden into?

How many ordered pairs of positive integers satisfy xy=32?