# Cumulative Frequency Polygon

- Author:
- Anthony OR 柯志明

- Topic:
- Statistics

Answer the following questions using the applet.
(a) If the passing mark is 50, how many students fail in the test?
(b) If 50% of students pass the test what is the passing mark?
What is the passing mark if 70% of students pass the test?
(c) A prize will be given to the students who get 75 marks or above. How many students get the prize?
(d) If 8 prizes are to be given, what is the mark above or equal to which a prize would be given?
(e) How many students have marks between 55 and 75?