A researcher finds that 12% of participants make between three and five 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

Question

Quizplus · Accepted Answer

The real limits for the interval can be found by subtracting and adding half a unit to the boundaries. If the boundary values are 3 and 5, the real limits would be 2.5 and 5.5, respectively. Therefore, the best choice is B.

A Researcher Finds That 12% of Participants Make Between Three