Choose the converse of the following statement.

they are not left behind, if they are on time.

if they are not left behind, then they are on time.
if they are on time, then they are not left behind.
if they are not on time, then they are left behind.
if they are left behind, then they are not on time

At least two people have the same birthday in a school of 150 students

Write and solve a real word problem that involves determining distance on a coordinate plane

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.