A parking garage has 9 floors, including the street level, with 8 separate ramps connecting them. Each ramp is 18 m in length and the top floor is 28 m above street level.
a. Assuming each ramp has the same dimensions, what is the slope of each ramp? (2
marks)
b. Stairs rise from the street level to the top floor. The stairwell between the street level
and the first floor has the same rise as one ramp. The slope of the stairwell is 0.95. What
horizontal distance does the stairwell cover? (2 marks)

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.