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प्रश्न
Define parameter
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उत्तर
A parameter is any numerical quantity that characterizes a given population or some aspect of it.
This means the parameter tells us something about the whole population.
For example, the population means µ, variance σ2, population proportion P, population correlation ρ.
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संबंधित प्रश्न
Non-sampling errors can be minimized by taking large samples.
Give two examples each of sample, population and variable.
Which of the following methods give better results and why?
Suppose there are 10 students in your class. You want to select three out of them. How many samples are possible?
Discuss how you would use the lottery method to select 3 students out of 10 in your class?
Do samples provide better results than surveys? Give reasons for your answer.
Explain in detail about systematic random sampling with example
A wholesaler in apples claims that only 4% of the apples supplied by him are defective. A random sample of 600 apples contained 36 defective apples. Calculate the standard error concerning of good apples
Choose the correct alternative:
Which one of the following is probability sampling
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 |
Monthly Household Expenditure (in Rupees) on Food of 50 Households
Find the number of households whose monthly expenditure on food is
(b) more than Rs 3000
(c) between Rs 1500 and Rs 2500
