The table below shows the number of workers doing various jobs in a factory and their daily wages.
Daily wages (Rupees) Number of workers
225 4
250 7
270 9
300 5
350 3
400 2
What is the mean daily wage?

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Solution

Daily wages
(Rupees) $x$ Number of workers
$f$ $f x$
225 4 900
250 7 1750
270 9 2430
300 5 1500
350 3 1050
400 2 800
Total $\sum f = 30$ $\sum f x = 8430$
Mean daily wage $= \frac{\sum f x}{\sum x} = \frac{8430}{30} = 281$
Thus, mean daily wage of workers is Rs. $281$ .

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Daily wages (Rupees)	Number of workers
225	4
250	7
270	9
300	5
350	3
400	2

Daily wages (Rupees) $x$	Number of workers $f$	$f x$
225	4	900
250	7	1750
270	9	2430
300	5	1500
350	3	1050
400	2	800
Total	$\sum f = 30$	$\sum f x = 8430$

The table below shows the number of workers doing various jobs in a factory and their daily wages.Daily wages (Rupees)Number of workers225425072709300535034002What is the mean daily wage?

Daily wages(Rupees)xNumber of workersffx2254900250717502709243030051500350310504002800Total∑f=30∑fx=8430Mean daily wage=∑fx∑x=843030=281Thus, mean daily wage of workers is Rs.281.

The table below shows the number of workers doing various jobs in a factory and their daily wages.
Daily wages (Rupees) Number of workers
225 4
250 7
270 9
300 5
350 3
400 2
What is the mean daily wage?

Daily wages
(Rupees) $x$ Number of workers
$f$ $f x$
225 4 900
250 7 1750
270 9 2430
300 5 1500
350 3 1050
400 2 800
Total $\sum f = 30$ $\sum f x = 8430$
Mean daily wage $= \frac{\sum f x}{\sum x} = \frac{8430}{30} = 281$
Thus, mean daily wage of workers is Rs. $281$ .