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# Ex.5.1 Q3 Data Handling Solutions - NCERT Maths Class 8

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## Question

The weekly wages (in $$\rm{Rs}$$) of $$30$$ workers in a factory are:

$$830,\; 835,\; 890,\; 810,\; 835,\; 836,\; 869,\; 845,\; 898,\; 890,\; 820,\; 860,\; 832,\; 833,\; 855,\; 845,\; 804,\; 808,\; 812,\; 840,\; 885,\; 835,\; 835,\; 836,\; 878,\; 840,\; 868,\; 890,\; 806,\; 840.$$

Using tally marks, make a frequency table with intervals as $$800 – 810,\; 810 – 820$$ and so on.

Video Solution
Data Handling
Ex 5.1 | Question 3

## Text Solution

What is known?

Weekly wages of $$30$$ workers in Rupees.

What is unknown?

Frequency table of the weekly wages of $$30$$ workers with intervals of $$10.$$

Reasoning:

Number of occurrences of the particular entry is known as frequency.

Steps:

The representation of data by frequency distribution table using tally marks is as follows:

 Class Intervals Tally Marks Frequency $$800\;–\;810$$ ||| $$3$$ $$810\;–\;820$$ || $$2$$ $$820\;–\;830$$ | $$1$$ $$830\;–\;840$$ |||| |||| $$9$$ $$840\;–\;850$$ |||| $$5$$ $$850\;–\;860$$ | $$1$$ $$860\;–\;870$$ ||| $$3$$ $$870\;–\;880$$ | $$1$$ $$880\;–\;890$$ | $$1$$ $$890\;–\;900$$ |||| $$4$$ Total 30

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