Having Been Given Information About the Age of Patients in a Hospital

Having been given information about the age of patients in a hospital you work out that the median data point is in the class 65 and under 70. This class has a frequency of 67, the cumulative frequency up to the previous class is 217, the total number of patients in the hospital is 464. Calculate the median for this data.

A) 67.5
B) 68.9
C) 65
D) 66.1