4) The stopping distances for bicycles traveling at 20 kmh-1 are assumed to follow a normal
distribution with a mean of 6.76 m and a standard deviation of 0.12 m.
a) Under this assumption, find, correct to four decimal places, the probability that a bicycle
chosen at random traveling at 20 kmh ¹ manages to stop
-1
sd: 0.12
i) in less than 6.5 m. (3 marks)
ii) in more than 7 m.
