1 Student exam results as a percentage are modelled by a Normal distributionwhere X- N(75, 100). Find the probability that an individual percentage is greater than 85% Give your answer correct to 3...

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Extracted text: 1 Student exam results as a percentage are modelled by a Normal distributionwhere X- N(75, 100). Find the probability that an individual percentage is greater than 85% Give your answer correct to 3 d.p. Type your answer. 2 Lengths of metal rulers produced by a machine are normally distributed with a mean length of 30 cm and a standard deviation of 0.1 cm. Find the probability that the length of a randomly selected ruler is shorter than 29.8 cm Give your answer correct to 3 d.p. Type your answer.