Problem:
A student recorded the exact percentage frequency distribution for a set of measurements, as shown to the right. However, the student neglected to indicate N, the total number of measurements. What is the smallest possible value of N?
Measured01234Value12.50502512.5100
Answer Choices:
A. 5
B. 8
C. 16
D. 25
E. 50
Solution:
Since 12.5% is 1/8,N must be at least 8. Since 50%=1/2=4/8 and 25%=1/4=2/8,N=8 is the answer.