The weekly wages (in ₹) 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.

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Q. The weekly wages (in

R s

) 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

Q. The weekly wages (in 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

What is the frequency of

830 - 840

interval?

Q. The weekly wages of 30 workers in a factory are:
830, 835, 890, 810, 835, 836, 869, 845, 898, 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. Also, draw a histogram for the frequency table and find which group has the maximum number of workers?

The weekly wages (in Rs) of 30 workers in a factory are given: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 Marks a frequency table with intervals as 800-810, 810-820 and so on, using tally marks Also, draw a histogram and answer the following questions:

(i) Which group has the maximum number of workers?

(ii) How many workers earn Rs 850 and more?

(iii) How many workers earn less than Rs 850?

Q. Find the Quartile Deviation for the following set of data:

490, 540, 590, 600, 620, 650, 680, 770, 830, 840, 890, 900

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