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1. For the demand function Q. 10 -9P + P +0.01Y which of the following statements are true. a) -9+ P2 + 0.018. 00, ap b) 00: ap, 9 a. c) P2. OP 30. d) 0.00. ay 2. A distribution has standard deviation of 50 and mean of 80 What is the coefficient of variation? a) 0.566 b) 2.6 c) 5.66 d) None of them 3. For the standardized normal distribution, the following probabilities is ? (1.26