Advertisements
Advertisements
प्रश्न
In a village of 200 farms, a study was conducted to find the cropping pattern. Out of the 50 farms surveyed, 50% grew only wheat. What is the population and the sample size?
Advertisements
उत्तर
Population refers to the aggregate or the total items to be studied for an investigation. So, the population here is 200 farms.
The sample is a subset of the population. In other words, a small set selected from the population for the statistical study is referred to as the sample population.
Out of 200 farms, only 50 farms are selected for the survey; therefore, the sample population is 50 farms.
APPEARS IN
संबंधित प्रश्न
Give two examples each of sample, population and variable.
Which of the following errors is more serious 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 sample?
Define parameter
Explain in detail about systematic random sampling with example
Explain in detail about sampling error
State any two demerits of systematic random sampling
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
A random sample of 60 observations was drawn from a large population and its standard deviation was found to be 2.5. Calculate the suitable standard error that this sample is taken from a population with standard deviation 3?
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 ______ of statistical individuals in a population is called a sample
Choose the correct alternative:
A finite subset of statistical individuals in a population is called ______
Choose the correct alternative:
A ______ is one where each item in the universe has an equal chance of known opportunity of being selected
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
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
A sample of 100 students is drawn from a school. The mean weight and variance of the sample are 67.45 kg and 9 kg. respectively. Find (a) 95% (b) 99% confidence intervals for estimating the mean weight of the students
