Question

The width or size of the class interval 30-40 is:20

70

10

2​

Answer 1

SOLUTION

TO CHOOSE THE CORRECT OPTION

The width or size of the class interval 30-40 is:

• 20

• 70

• 10

• 2

CONCEPT TO BE IMPLEMENTED

Class Width

Class Length or Class Size or Class Width of the class interval of any class is defined to be the difference between the lower and upper class boundaries ( not class limits) of that particular class interval.

Class length = Upper Class boundary - Lower class boundary

EVALUATION

Here the given class interval is 30 - 40

Upper Class boundary = 40

Lower class boundary = 30

Hence the required class width

= Upper Class boundary - Lower class boundary

= 40 - 30

= 10

FINAL ANSWER

Hence the correct option is 10

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Answer 2

Answer:
70 is the answer