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

Enter another set of data (of maximum 10 classes) in the worksheet to construct and explore its cumulative frequency polygon.