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4) A recent Harris Poll on green behavior showed that 25% ofadults often purchased used items instead of new ones. If a randomsample of 5 adults is used, what is the probability that no morethan 4 of the sampled adults purchase used items instead of newones? Round to the nearest thousandth.

5) In order to answer the question \"What percentage of hospitalsprovide at least some charity care?\", the following problem isbased on information taken from State Health Care Data:Utilization, Spending, and Characteristics (American MedicalAssociation). Based on a random sample of hospital reports fromeastern states, the following information was obtained (units inpercentage of hospitals providing at least some charitycare):

57.1 56.2 53.0 66.1 59.0 64.7 70.1 64.7 53.5 78.2

What is the mean for this data? Round to the nearesthundredth.

6) In order to answer the question \"What percentage of hospitalsprovide at least some charity care?\", the following problem isbased on information taken from State Health Care Data:Utilization, Spending, and Characteristics (American MedicalAssociation). Based on a random sample of hospital reports fromeastern states, the following information was obtained (units inpercentage of hospitals providing at least some charitycare):

57.1 56.2 53.0 66.1 59.0 64.7 70.1 64.7 53.5 78.2

What is the standard deviation for this data? Round to thenearest hundredth