Problem 80a

Given information

Number of Students= 50

Number of Students taking 1 Course = 30, Relative Frequency = 0.6

Number of Students taking 2 Courses= 15

Step-by-step explanation

As the total number of students=50

Then number of students taking 3 courses i.e. Frequency= 50-(30+15)= 5;

Now,

we know

  So Relative Frequency,

                   For 2 Courses= 15/50 =0.3

            And For 3 Courses= 5/50 =0.1