Question

The table below shows the number of students in different grades who prefer specific courses.


Examine the table and choose the correct options.

• A. Maths is the least prefered subject in all the three grades.
• B. The joint frequency of the number of students who prefer Science is highest for grade VIII, while least for grade VII.
• C. History is the least prefered subject among the students of all the grades.
• D. The joint frequency of the number of students of grade VI who prefer Geography is $14$.

Answer 1

Answer: (B), (C), (D)

The joint frequency of the number of students of grade VI who prefer Geography is $14$.

Observe the given table,


Here, the number of students who prefer Maths is the highest while for History, the number is the lowest, thus Maths is the most prefered subject and History is the least prefered subject among the students of all the grades.

Now, observe the number of students in different grades who like Science,


It can be clearly observed that the joint frequency of the number of students who prefer Science is highest for grade VIII, i.e., $25$, while lowest, i.e., $23$ for grade VII.

Furthermore, observe the number of students of grade VI who prefer Geography.


There are $14$ students of grade VI who prefer geography, i.e., the joint frequency of students of grade VI who prefer Geography is $14$.

So, second, third and fourth options are correct.