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  • The daily income of a group of factory workers is given in the following table. Daily Income (In Rs.) Number of Worker 100 - 125 45 125 - 150 35

The daily income of a group of factory workers is given in the following table.

Daily Income (In Rs.) Number of Workers
100 - 125 45
125 - 150 35
150 - 175 35
175 - 200 55
200 - 225 30
225 - 250 50

i. What is the size/width of each class Interval?

ii. Which class has the least frequency?

iii. What is the upper limit of the class interval 175-200?

iv. Which class intervals have equal frequencies 

Answers (1)

best_answer

i. Size/width of each class Interval- The width is calculated by subtracting the lower limit of a class from its upper limit. So, $$
125-100=25
$$

Therefore, the width of each class interval is 25 Rs.

ii. The class with the smallest frequency is 200–225 with 30 workers.

iii. For the class interval 175–200, the upper limit is 200 Rs.

iv. The classes 125–150 and 150–175 both have a frequency of 35.

Posted by

Saniya Khatri

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