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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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6X G1 i ven ar, mean is M 100 and standard deviation is 16 we know hat, approi mately 5 / values of a data set ue between cdhishmibuian of he data is belL shaped tHere I0 bests are standardized to a mormal mo del. The disthmibuhon of Ia scores is bell shape d nNow U w We expect cenhral 95. of T6 6, 132) 7) Leh Ai denote s He even af there is iina symbol unde r the cap of ih Cola botLe en hat the manufacturen Gti places winning symbols unden nmu the caps of 30 of all cota boHlesPrg babiutyhat thene is a winning symbol under the cap of a randomly selecte d csla borte is 3 0 o 0 -0.30. Now, vequived po lb abi uhy is Here A and A are ww ind ependent ρ1. a e ing-of winnin even/3 as rhe symbol underhe cap of one cola bortle s independent of he eap of another cola botLe 300 300 30 x 0 3D D,51. pt acing of winning symbol unde w S4mb 0 unde γ - = Given rha . The expected valne of Xty s a w expeetahon $100+ 本 150 6 250.

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