BiVariate Worksheet answers

BiVariate Worksheet answers - Bivariate.rv.2010W.answers...

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Bivariate.rv.2010W.answers 7.3.a (i) x12 y123 p(x) 0.5 p(y) 0.3 0.2 (ii) E(X) = 1.5 E(Y) = 1.7 (iii) 0.1 (iv) (v) 3.2 (vi) 0.56 7.3.b (i) x012 y012 (ii) No, because P(X and Y) ± P(X) x P(Y) for all X and Y (iii) E(X) = 1.1 F (x) = 0.49 2 (iv) t 01234 p(t) .1 .2 .4 (iv) E(t) = 2.2 F (t) = 1.36 2 (v) E(2 day Profit) = $27 (in 1000's) or $27,000 Std Dev ( 2 day profit) = $17.49 ( in 1000's) or $17,490 (rounded from $17,492.86)
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7.3.c (i) t 4567 p(t) .04 .26 .46 .24 (ii) c 1000 1500 2000 2500 3000 3500 p(c) .40
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BiVariate Worksheet answers - Bivariate.rv.2010W.answers...

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