HSC Commerce कक्षा १२ - Tamil Nadu Board of Secondary Education Question Bank Solutions for Business Mathematics and Statistics

Explain in detail about systematic random sampling with example

Explain in detail about sampling error

Explain in detail about non-sampling error

State any two merits of simple random sampling

State any three merits of stratified random sampling

State any two demerits of systematic random sampling

State any two merits for systematic random sampling

Using the following Tippet’s random number table

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

 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 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

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?

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

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A ______ of statistical individuals in a population is called a sample

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A finite subset of statistical individuals in a population is called ______

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Any statistical measure computed from sample data is known as ______

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A ______ is one where each item in the universe has an equal chance of known opportunity of being selected

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

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Which one of the following is probability sampling

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