Tally Placement for Score 57

If a student scores 57 marks in mathematics, in which class interval is a tally mark placed while constructing a frequency distribution with class intervals of 10?

Correct Answer Explanation

A score of 57 falls in the class 50–60, so the tally is placed against that class.

Key Rules for Tally Placement:

• A value of 57 → between 50 and 60 → class 50–60 ✓
• A value of 71 → between 70 and 80 → class 70–80 ✓
• A value of 40 → between 40 and 50 → class 40–50 ✓ (not 30–40)
• In exclusive class intervals, the upper limit value goes into the NEXT class.