Mathematics

Problem

The numbers of books read by 20 students in a month are listed below:

2,\; 3,\; 4,\; 2,\; 3,\; 5,\; 2,\; 3,\; 6,\; 2,\; 3,\; 7,\; 2,\; 3,\; 8,\; 2,\; 3,\; 9,\; 2,\; 3

. Answer the following: a. (i) Identify all the modes of the data. b. (ii) State the common frequency of these modes.