A Doctor Wants to Know How Well Elderly Patients Remember

question 18

Multiple Choice

A doctor wants to know how well elderly patients remember to take their medicine.The doctor measures the percentage of times during the week that patients remembered to take their medicine.For a sample of 10 patients,the mean percentage was 75,with a variance of 15.If the doctor could test his/her entire patient population,what would he/she expect the population variance to be?

• A)3.87
• B)15
• C)16.67
• D)150

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