Please help with question. thnaks

Statistics
Tutor: None Selected Time limit: 1 Day

Suppose that the New England Colonials baseball team is equally likely to win any particular game as not to win it. Suppose also that we choose a random sample of Colonials games.

  1. Estimate the number of games in the sample that the Colonials win by giving the mean of the relevant distribution (that is, the expectation of the relevant random variable). Do not round your response.
  2. Quantify the uncertainty of your estimate by giving the standard deviation of the distribution. Round your response to at least three decimal places.
Jun 16th, 2015

Thank you for the opportunity to help you with your question!

X = the number of games that the BC win 
then X has binomial distribution BIN(n = 20, p = 1/2) 

and then E(X) = np = 20/2 = 10 
Var(X) = np(1-p) = 20/4 = 5 
Stdev (X) = sqrt(5)

Please let me know if you nea case for torture by michale levined any clarification. I'm always happy to answer your questions.
Jun 16th, 2015

Hello the number did not show up in my question please see that it is suppose to be 30.

 choose a random sample of 30 Colonials games

Jun 16th, 2015

wait

Jun 16th, 2015

3x-x+2=4

Jun 16th, 2015
plot_formula__1_.jpg
plot_formula.jpg

Why are you using 20 if the number games are 30?

Jun 16th, 2015

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Jun 16th, 2015
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Jun 16th, 2015
Dec 4th, 2016
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