(Answered) The table below gives the size of the freshman class

Statistics

The table below gives the size of the freshman class entering BSC for the past several years.

Class of	2005	2006	2007	2008	2009	2010	2011	2012	2013	2014
Size	1178	1297	1304	1305	1332	1361	1584	1502	1479	1460

a) Compute the expected value of the size of the freshman class. (Assume each size listed above is equally likely).

b) Compute the standard deviation of the size of the freshman class.

c) Based on your answers to part (a) and (b), would you say that the size of the freshman class at BSC was extremely variable or fairly constant over the last ten years? Explain your reasoning.

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