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liam is setting up folding chairs for a meeting. if he arranges the chairs in 8 rows of the same length, he has 5 chairs left over. if he arranges the chairs in 6 rows of that same length, he has 13 left over. how many chairs does liam have?

What is the standard deviation of the following data set rounded to the nearest tenth? 3, 17, 18, 15, 12, 21, 9

Inez has a phone card. the graph shows the number of minutes that remain on her phone card a certain number of days.

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.