A researcher finds that 12% of participants make between 3-5 visits to a physician each year. What are the real limits for this interval?

A researcher finds that 12% of participants make between 3-5 visits to a physician each year. What are the real limits for this interval?




a. 3-5
b. 2.5-5.5
c. 2.5-3.5
d. equal to the sum of the products for the previous interval




Answer: B


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