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Question
In a city, 45 families were surveyed for the number of Cell phones they used. Prepare a frequency array based on their replies as recorded below.
| 1 | 3 | 2 | 2 | 2 | 2 | 1 | 2 | 1 | 2 | 2 | 3 | 3 | 3 | 3 |
| 3 | 3 | 2 | 3 | 2 | 2 | 6 | 1 | 6 | 2 | 1 | 5 | 1 | 5 | 3 |
| 2 | 4 | 2 | 7 | 4 | 2 | 4 | 3 | 4 | 2 | 0 | 3 | 1 | 4 | 3 |
Answer in Brief
Solution
Frequency Array of appliances being used by households
| No. of Domestic Appliances | No. of Households |
|
0 |
1 |
|
1 |
7 |
|
2 |
15 |
|
3 |
12 |
|
4 |
5 |
|
5 |
2 |
|
6 |
2 |
|
7 |
1 |
|
Total |
45 |
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Organisation of Data - Frequency Series
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Chapter 3: Organisation of Data - Exercise [Page 38]
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RELATED QUESTIONS
Explain the ‘exclusive’ and ‘inclusive’ methods used in the classification of data.
Use the data in the Table below that relate to monthly household expenditure (in Rs) on the food of 50 households and
| 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 |
Obtain the range of monthly household expenditure on food.
