Art and Ben are walking towards a shop along different straight paths. The diagram shows their position at 3 pm.

a) Assume they walk at the same speed.
Who will arrive at the shop first?

You must show your working.
In your working, let the distance between Ben and the shop be x metres at 3 pm.

Need now 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.