Question

If there are two class intervals 10-20 and 20-30, then in which interval will 20 fall?

• A. Neither in 10-20 nor 20-30
• B. 10-20
• C. In both, 10-20 and 20-30
• D. 20-30

Answer 1

The correct option is D

20-30

When the intervals are continuous, lower limits of the interval are included in it; where as upper limits are not.