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प्रश्न
Explain the procedure of selecting a random sample of 3 students out of 10 in your class, by using random number tables.
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उत्तर
The procedure for selecting a random sample of 3 students out of 10 in a class is as follows:
- Assign a particular number between 1 to 10 to all the 10 students like 01, 02, 03, 04, 05, 06, 07, 08, 09, 10.
- Select a number randomly. Let us assume that the number selected is 05.
- Consult the Two-Digit Random Number Table, two numbers successive to the selected random number (i.e. 05) either horizontally or vertically are the remaining two students (i.e. 06 and 07).
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संबंधित प्रश्न
There is a certain bias involved in the non-random selection of 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?
What is population?
What is sample?
What is statistic?
What is sampling distribution of a statistic?
Explain the stratifi ed random sampling with a suitable example
Explain in detail about non-sampling error
State any three merits of stratified random sampling
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
A sample of 1000 students whose mean weight is 119 lbs (pounds) from a school in Tamil Nadu State was taken and their average weight was found to be 120 lbs with a standard deviation of 30 lbs. Calculate the standard error of the mean
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 finite subset of statistical individuals in a population is called ______
Choose the correct alternative:
Any statistical measure computed from sample data is known as ______
Explain the types of 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
