The top speed (in km/s) of 20 spaceships in Nix’s fleet are:

230, 235, 290, 210, 235, 236, 269, 245, 298, 290, 220, 260, 232, 233, 255, 245, 204, 208, 212, 240. Using tally marks, make a frequency table with intervals as 200–220, 220–240, and so on.

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Construct a frequency table with equal class intervals from the following data on the daily wages (in Rs.) of 28 labourers workiing 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, 302,318, 306, 292, 254, 278, 210, 240, 280, 316, 306, 215, 256, 236.

Q. The distances covered by 250 public transport buses in a day is shown in the following frequency distribution table. Find the median of the distance.

Distance (km)	200 - 210	210 - 220	220 - 230	230 - 240	240 - 250
No. of buses	40	60	80	50	20

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 given data on the daily wages (in ₹) of 28 labourers, 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
What is the range of the given data?

A grouped frequency table with class intervals of equal sizes using 250 – 270 (270 not included in this interval) as one of the class intervals is constructed for the following data.

268, 220, 368, 258, 242, 310, 272, 342

310, 290, 300, 320, 319, 304, 402, 318

406, 292, 354, 278, 210, 240, 330, 316,
406, 215, 258, 236.

The frequency of class 310 - 330 is:

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The top speed (in km/s) of 20 spaceships in Nix’s fleet are: 230, 235, 290, 210, 235, 236, 269, 245, 298, 290, 220, 260, 232, 233, 255, 245, 204, 208, 212, 240. Using tally marks, make a frequency table with intervals as 200–220, 220–240, and so on.

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The top speed (in km/s) of 20 spaceships in Nix’s fleet are:

230, 235, 290, 210, 235, 236, 269, 245, 298, 290, 220, 260, 232, 233, 255, 245, 204, 208, 212, 240. Using tally marks, make a frequency table with intervals as 200–220, 220–240, and so on.