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6. The heights of students at a university are assumed to follow a normal distribution. 1% of the students are over 200 cm tall and 76% are between 165 cm and 200 cm tall.
Find
(i) the mean and variance of the distribution, [6]
(ii) the percentage of the students who are under 158 cm tall. [3]
Find
(i) the mean and variance of the distribution, [6]
(ii) the percentage of the students who are under 158 cm tall. [3]
