The water-tax bills in (in rupee) of 30 houses in a locality are given – InterviewSolution

InterviewSolution

1.	The water-tax bills in (in rupee) of 30 houses in a locality are given below: 144,184,130,195,132,134,196,114,212,174,188,210,202,145,175,154,174,178,166,146,135,115,120,114,140,188,179,166,210,208. Construct a frequency distribution table with class size 10.
Answer» Solution :The minimum observation is 114 and the maximum observation is 212. `therefore "RANGE"=(212-114)=98` Class size=10. Since `98 divide 10`=9.8, we should have 10 classes, each of size 10. The class of equal size, CONVERING the above data are: 114-124,124-134,134-144,144-154,154-164,164-174,174-184,184-194,194-204 and 204,214 The FREQUENCY distribution table may be presented as shown below:

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