Use the data in Table 3.2 that relate to monthly household expenditure (in Rs) on food of 50 households and obtain the range of monthly household expenditure on food.
Answers
Given : data in Table 3.2 monthly household expenditure (in Rs) on food of 50 households
To find : obtain the range of monthly household expenditure on food.
Solution:
Table 3.2
Monthly Household Expenditure (in Rupees) on Food of 50 Households
1904 1559 3473 1735 2760
2041 1612 1753 1855 4439
5090 1085 1823 2346 1523
1211 1360 1110 2152 1183
1218 1315 1105 2628 2712
4248 1812 1264 1183 1171
1007 1180 1953 1137 2048
2025 1583 1324 2621 3676
1397 1832 1962 2177 2575
1293 1365 1146 3222 1396
Range of data = Highest Value of Data – Lowest Value of Data
Highest Value = 5090
Lowest Value = 1007
Hence Range = 5090 – 1007 = 4083
4083 is Range of monthly household expenditure on food.
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To find :
(i) Obtain the range of monthly household expenditure on food.
(iii) Find the number of households whose monthly expenditure on food is
(a) less than Rs 2000
(b) more than Rs 3000
c) between Rs 1500 and Rs 2500
Answer:
(i) Range = Highest Value - Lowest Value
Highest Value = 5090
Lowest Value = 1007
So, Range = 5090 - 1007 = 4083
(iii)
(a) Number of households whose monthly expenditure on food is less than Rs 2000
= 20 + 13 = 33
(b) Number of households whose monthly expenditure on food is more than Rs 3000
= 2+1+2+0+1 = 6
(c) Number of households whose monthly expenditure on food is between Rs 1500 and Rs 2500
= 13 + 6 = 19