Statistics questions and answers with explanation for interview, competitive examination and entrance test. Fully solved examples with detailed answer description, explanation are given and it would be easy to understand.

1. A numerical value used as a summary measure for a sample, such as sample mean, is known as a
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2. In a week the prices of a bag of rice were 350,280,340,290,320, 310,300. The range is
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3. The mean of a distribution is 14 and the standard deviation is 5. What is the value of the coefficient of variation?
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4. The sum of the percent frequencies for all classes will always equal
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5. Which of the following is not based on all the observations?
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