1 Jack is keeping a record of the number of steps he takes each day.

Monday 8 565 steps
Tuesday 14 707 steps
Wednesday 15 323 steps
Thursday 9 788 steps
Friday 12 482 steps
Work out the range of the number of steps

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.