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3. The lifespan of an insect is normally distributed with a mean of 70 hours and a standard deviation of 8.2 hours. a) Draw a normal distribution with the probability that an individual's lifespan is between 55 and 65 hours properly shaded. [1 mark] b) Find the probability that the lifespan of an individual is between 55 and 65 hours. [2 marks] c) Find the probability that an individual's lifespan will be greater than 80 hours. [3 marks]