14-3 Assuming all three groups of data have the same mean of 7 (M = 7), which group shows the highest variability? List them in the order of the highest variability to the lowest variability. Group
A: S = 5.42 Group B: S = 1.34 Group C: S = 5.01. Group D: S = 0.00

What is the answer to this question? i'm a bit stumped. also how do i do it? 5(x - 4) = 2(x + 5)

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.

Solve the following inequalities and show the solution on a number line. 2x+3< 3(4x+5)