The distribution of the amount of gravel (in tons) sold by a particular construction supply company in a given week is a continuous random variable X with probability density function as shown. (a) How do you use this to find the probability that X is less than .25? (b) What about the probability that X is greater than .75? (c) What aboutP(.25 < X < .75)? 3. (1 – x²) 0

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