Wages of 50 workers are given. Present them in the form of exclusive frequency distribution with class interval as 45 - 55, 55 - 65 etc.

$\begin{matrix} 95 & 92 & 91 & 90 & 88 & 82 & 86 & 87 & 87 & 88 & 70 & 72 & 76 & 77 & 77 79 & 79 & 79 & 78 & 78 & 68 & 67 & 67 & 66 & 65 & 62 & 62 & 62 & 62 & 64 58 & 59 & 60 & 60 & 60 & 60 & 61 & 62 & 62 & 62 & 55 & 55 & 55 & 56 & 57 54 & 53 & 52 & 52 & 50 \end{matrix}$

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Solution

Exclusive Frequency Distribution

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Q. Prepare a discrete series from the following data:

62	50	57	58	51	53	62	64	60	61
60	51	64	55	55	52	60	65	58	60
59	52	63	56	56	58	64	63	62	60

Question 100(i)

Construct a frequency distribution table for the following weights (in grams) of 35 mangoes, using the equal class intervals, one of them is 40-45 (45 not included):
30, 40, 45, 32, 43, 50, 55, 62, 70, 70, 61, 62, 53, 52, 50, 42, 35, 37,
53, 55, 65, 70, 73, 74, 45, 46, 58, 59, 60, 62, 74, 34, 35, 70, 68
How many classes are there in the frequency distribution table ?

Question 100(ii)

The marks scored by 40 students of class IX in mathematics are given below:
$\begin{matrix} 81, & 55, & 68, & 79, & 85, & 43, & 29, & 68, & 54, & 73, & 47, 35, & 72, & 64, & 95, & 44, & 50, & 77, & 64, & 35, & 79, & 52, 45, & 54, & 70, & 83, & 62, & 64 & 72, & 92, & 84, & 76 & 63 43, & 54, & 38, & 73, & 68, & 52, & 54 \end{matrix}$
Prepare a frequency distribution with class size of 10 marks.

The weekly expenses (₹) 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. Which among the given options is the correct frequency table?

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62	50	57	58	51	53	62	64	60	61
60	51	64	55	55	52	60	65	58	60
59	52	63	56	56	58	64	63	62	60

62	50	57	58	51	53	62	64	60	61
60	51	64	55	55	52	60	65	58	60
59	52	63	56	56	58	64	63	62	60

Wages of 50 workers are given. Present them in the form of exclusive frequency distribution with class interval as 45 - 55, 55 - 65 etc. 9592919088828687878870727677777979797878686767666562626262645859606060606162626255555556575453525250

Exclusive Frequency Distribution

62	50	57	58	51	53	62	64	60	61
60	51	64	55	55	52	60	65	58	60
59	52	63	56	56	58	64	63	62	60