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# FOR A POPULATION COMPRISING 30% MALES, WHAT IS THE PROBABILILITY

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Author: Christine Farr
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http://theperfecthomework.com/for-a-population-comprising-30-males-what-is-the-probabilility-of-drawing-a-random-sample-of-313-and-getting-exactly-94-males/

For a population comprising 30% males, what is the probabilility of drawing a random sample of 313 and getting exactly 94 males? Hint: use the binomial distribution.
4.9%

30.0%

46.7%

50.0%

53.3%

If the variable "Age" were uniformly distributed over the range measured in the sample, the mean would be:
26

37

38.5

45

71

Assume that Pay follows a normal distribution with the parameters measured by the sample. Using this information, what proportion of the population earns more than \$45000?
20.9%

22.7%

77.3%

78.1%

87.6%

Assume that Pay follows a normal distribution with the parameters measured by the sample. Using this information, what proportion of the population earns between \$45000 and \$55000?

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