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lyn Heashp lsue Dale Thuneday, March 8,2018 Dse Date: Thersday, March 22, 2018 (1) (4 Pointe) Find each probability (a) Px-5),XB15,0.4). Reuned your snswer to t three decimal places (b) P(x S 15), if X~B(25,0.8). Round your s answer to three decimal places (e) P(x 2 3), xB(0,0.3). Round your anawer to three declmal places (d) P(12 s X s14),xB(20,0.7). Round your answer to three decimal places (2) (2 Points) A statistician takes a simple random sample of 20 voters in a certain up precinct. Suppose 65% of voters in the precinct favor a certain candidate in an coming election. Find these probabilities. (a) At least 13 voters in the sample favor the candidate. Round your answer to t hree decimal places (b) Less than 10 voters in the sample favor the candidate. Round your answer to three decimal places
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a) feom the gven infrmation ase have, ve in-fomat nv B (15, 0, 4) Thwo, the pobabilit funchan for a binomial vandom vae ablet) Given that, × ~B(25, d 8) 25-1 2.5 25) (0.8广(-0.8) (03)3 (1-o-825号 25-5 25-4 (s (o) (I-0.8) (0.8ft (I-08) 8) (i-0.8 25 16us oogget o.oooo 6273 2.33ナ0.0002924so t 0.0011刊00146ナ0.004015869-t 0.011749110厂 ニ o.οι 33186954 ,(pCX-15)= o o17 | efoundeGiven that X BCIo, 0.3) o) (03) (1-0.3) t (:3) (1-0.3 +(2)(0.3)(1-o3 - 0 0 282475249 0.121oso 821 t o 2 334 744405 0.61721721

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