Ahorse racing track knows that the proportion of its gamblers that report winning is 15%. for a random sample of 64 gamblers, what is the standard deviation for the sampling distribution of the sample proportions, rounded to three decimal 3?

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on monday rodney ate 1/4th of the sandwich = 3/12

on tuesday he ate 1/3rd of the sandwich = 4/12

therefore in total he has eaten = 3/12 + 4/12 = 7/12

thus we can say that he has eaten 7/12 of the sandwich on monday and tuesday alltogether.

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75%

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