मराठी

Do samples provide better results than surveys? Give reasons for your answer.

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प्रश्न

Do samples provide better results than surveys? Give reasons for your answer.

थोडक्यात उत्तर
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उत्तर

Samples provide better results than surveys. The advantages of samples over the survey are as follows:

1. Provides Reliable and Accurate Results- The Sample Method provides reliable and accurate results. This is because of the fact that errors can be easily located and rectified in the sampling methods due to the smaller number of items.

2. Less Time and Energy Consuming- The Sample Method involves the study of fewer items of the universe. So, this method not only saves time but also the energy of the investigator.

3. Cost-Efficient- The cost of approaching each individual unit for interrogation and collection of data is comparatively lower due to the small size of the sample.

4. Lesser Non-sampling Errors- The probability of Non-sampling Errors is also low as the sample size is smaller.

5. More Efficient- As the sample size is smaller, so small teams of enumerators can be formed. These small teams can easily be well trained and supervised. Consequently, the team is more efficient than that of the team engaged in the surveys.

6. Large Investigations- When the size of the population is very large and inapproachable, the method of sample is the most feasible.

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Concepts of Sampling
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पाठ 2: Collection of Data - Exercise [पृष्ठ २१]

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एनसीईआरटी Statistics for Economics [English] Class 11
पाठ 2 Collection of Data
Exercise | Q 14. | पृष्ठ २१

संबंधित प्रश्‍न

Suppose there are 10 students in your class. You want to select three out of them. How many samples are possible?


Does the lottery method always give you a random sample? Explain.


Explain the procedure of selecting a random sample of 3 students out of 10 in your class, by using random number tables.


What is population?


What is sample?


Define parameter


What is sampling distribution of a statistic?


What is standard error?


Explain the stratifi ed random sampling with a suitable example


Explain in detail about sampling error


Explain in detail about non-sampling error


Using the following Tippet’s random number table

2952 6641 3992 9792 7969 5911 3170 5624
4167 9524 1545 1396 7203 5356 1300 2693
2670 7483 3408 2762 3563 1089 6913 7991
0560 5246 1112 6107 6008 8125 4233 8776
2754 9143 1405 9025 7002 6111 8816 6446

Draw a sample of 10 three-digit numbers which are even numbers


In a sample of 400 population from a village 230 are found to be eaters of vegetarian items and the rest non-vegetarian items. Compute the standard error assuming that both vegetarian and non-vegetarian foods are equally popular in that village?


Choose the correct alternative:

A ______ may be finite or infinite according as the number of observations or items in it is finite or infinite


Choose the correct alternative:

A random sample is a sample selected in such a way that every item in the population has an equal chance of being included


Choose the correct alternative:

Which one of the following is probability sampling


Choose the correct alternative:

In simple random sampling from a population of units, the probability of drawing any unit at the first draw is


Write short note on sampling distribution and standard error


Determine the standard error of proportion for a random sample of 500 pineapples was taken from a large consignment and 65 were found to be bad


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

(a) less than Rs 2000
(b) more than Rs 3000
(c) between Rs 1500 and Rs 2500

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