Question

Consider the following distribution :

Marks obtained	Number of students
More than or equal to $0$	$63$
More than or equal to $10$	$58$
More than or equal to $20$	$55$
More than or equal to $30$	$51$
More than or equal to $40$	$48$
More than or equal to $50$	$42$

The frequency of the class $30-40$ is:

• A. $3$
• B. More than $2$
• C. Greater than $5$ but less $10$
• D. None

Answer 1

Answer: (A), (B)

The correct options are
A $3$
B More than $2$

The frequency of the class $30-40$ is $(\ge 30)-(\ge 40)$

$=51-48=3$

And, $3>2$.