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1. Study the following frequency distribution table and answer the questions given below.

(i) What is the size of the class intervals?

Frequency Distribution of Daily Income of 550 workers of a factory

Table 5.3

Class Interval

(Daily Income in Rs.)

Frequency

(Number of workers)

$100-125$

$45$

   $125-150$
$25$

$150-175$
$55$

   $175-200$
$125$

   $200-225$
$140$

$225-250$
$55$

$250-275$
   $35$

$275-300$
   $50$

   $300-325$
   $20$

Total
$550$

Answers (1)

best_answer

(i) The size of the class intervals = $125-100=25$

Class Interval (Daily Income in Rs.)	Frequency (Number of workers)
$100-125$	$45$
$125-150$	$25$
$150-175$	$55$
$175-200$	$125$
$200-225$	$140$
$225-250$	$55$
$250-275$	$35$
$275-300$	$50$
$300-325$	$20$
Total	$550$

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seema garhwal

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