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Mathcad - UF-ESI-6321-03-06

Mathcad - UF-ESI-6321-03-06 - UF-ESI-6321 UF-ESI.xmcd page...

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UF-ESI-6321 UF-ESI-6321-03-06.xmcd page 1 of 2 3.6 Winter lasts from December 21 through March 21. The average winter temperature in Boston is Normally distributed with mean uni03BC B 32.5 := degrees F and standard deviation σ B 1.59 := degrees F In New York City, the average winter temperature is Normally distributed with mean uni03BC N 35.4 := degrees F and standard deviation σ N 2.05 := degrees F (a) What is the probability that the average winter temperature in Boston this coming winter will be above freezing (32 degrees F)? x B 32 := Z B x B uni03BC B - ( ) σ B := Z B 0.31 - = p B 1 0.3783 - := p B 0.6217 = (b) Assume that average winter temperatures in Boston and New York are independent. What is the probability that the average temperature in Boston in the coming winter will be higher
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