The weekly wages (in rupees) of $28$ workers of a factory are given below:
$668, 610, 642, 658, 668, 620, 719, 720, 700, 690, 710, 642, 672, 654, 692, 706, 718, 702, 704, 678, 615, 640, 680, 716, 705, 615, 636, 656.$
Construct a frequency table with equal class intervals, taking the first of the class intervals as $610 - 630,$ where $630$ is not included.

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Solution

Arrange the outcomes in ascending order
We get,
$610, 615, 615, 620636, 640, 642, 642654, 656, 658, 668, 668672, 678, 680 690, 692, 700, 702, 704, 705, 706710, 716, 718, 719, 720$
The frequency distribution table is given in figure.

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Q. The weekly wages (in rupees) of 28 workers of a factory are given below:
668, 610, 642, 658, 668, 620, 719, 720, 700, 690, 710, 642, 672, 654, 692, 706, 718, 702, 704, 678, 615, 640, 680, 716, 705, 615, 636, 656.
Construct a frequency table with equal class intervals, taking the first of the class intervals as 610−630, where 630 is not included.

Q. The weekly pocket expenses (in rupees) of 30 students of a class are given below:
62, 80, 110, 75, 84, 73, 60, 62, 100, 87, 78, 94, 117, 86, 65, 68, 90, 80, 118, 72, 95, 72, 103, 96, 64, 94, 87, 85, 105, 115.
Construct a frequency table with class intervals 60−70 (where 70 is not included), 70−80, 80−90, etc.

Construct a frequency table with equal class intervals froin the following data on the monthly wages (in rupees) of 28 labourers working in a factory, taking one of the class intervals as 210-230 (230 not included): 220, 268, 258, 242, 210, 268, 272, 242, 311, 290, 300, 320, 319, 304, 302, 318, 306, 292, 254, 278, 210, 240, 280, 316, 306, 215, 256, 236.

Q. Construct a frequency table with equal class intervals from the following data on the monthly wages (in rupees) of 28 labourers working in a factory, taking one of the class intervals as 210−230 (230 not included).
220,268,258,242,210,268,272,242,311,290,300,320,319,304,302,318,306,292,254,278,210,240,280,316,306,215,256,236.

The data of weekly wages of workers of a factory is given below.

Weekly Wages	Number of Workers
800 - 999	20
1000 - 1199	14
1200 - 1399	17
1400 - 1599	25
1600 - 1799	9
1800 - 1999	12

Convert the above table in the form of exclusive class intervals.

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Arrange the outcomes in ascending orderWe get,610,615,615,620636,640,642,642654,656,658,668,668672,678,680690,692,700,702,704,705,706710,716,718,719,720The frequency distribution table is given in figure.

Arrange the outcomes in ascending order
We get,
$610, 615, 615, 620636, 640, 642, 642654, 656, 658, 668, 668672, 678, 680 690, 692, 700, 702, 704, 705, 706710, 716, 718, 719, 720$
The frequency distribution table is given in figure.