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a) ฉ hat is the explanatory variahle, b) What do you preodict the costs to be for a car aged 100 weeks 6 Some 1Q tests are standardized to a Normal model with a mean of 100 and a andaed deviation of 16 In what interval would you expect the central 95% of IQ scores to be found? (use the 68-95-99.7 rule) For a sales promotion, the manufacturer places winning symbols under the caps of W%of all Cola bottles. If you buy a two-pack of Cola, what is the probability that you win something 7 S. A broker has calculated the expected values of two different financial Suppose that Ecx-$100, E(-S150. What is the expected value of X-? Edit

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