Question: (a) Consider the simplistic model that human births are evenly distributed over the 12 calendar months. If a person is randomly selected, say, from a

(a) Consider the simplistic model that human births are evenly distributed over the 12 calendar months. If a person is randomly selected, say, from a phone directory, what is the probability that his or her birthday would be in November or December?
(b) The following record shows a classification of births (thousands) for 2011 in the United States. Calculate the relative frequency of births for each month and comment on the plausibility of the uniform probability model.

321 July 346 Aug. 360 March 3 Sept 346 April314 Oct.329 299 May June 327 338 Nov. Dec. Total 322 328 3961

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