STT201 Business Statistics
Business Statistics: most repeated questions
Questions that have come up in more than one paper, matched by what they ask rather than exact wording. Most repeated first.
- 3×Asked in 2026, 2024, 2023The mean and coefficient of variation of a certain data are 20 and 30% respectively. Calculate standard deviation.Answer coming1
See the wording in each paper
- The mean and coefficient of variation of a certain data are 20 and 30% respectively. Calculate standard deviation.TU Board 2026
- Calculate the Pearson's Coefficient of skewness when mean, mode and standard deviation are 25, 20 and 10 respectively.TU Board 2024
- Calculate coefficient of variation, when values of mean and standard deviation are 32 and 17 respectively.TU Board 2023
- 3×Asked in 2026, 2024, 2023For a moderately asymmetrical distribution, if the values of mean and median are 30 and 28, find the value of mode.Answer coming1
See the wording in each paper
- For a moderately asymmetrical distribution, if the values of mean and median are 30 and 28, find the value of mode.TU Board 2026
- In a moderately asymmetrical distribution, the mode and mean are 32 and 35 respectively. Calculate the median.TU Board 2024
- In a moderately asymmetric distribution, the values of mean and mode are 20 and 23 respectively. Compute the value of median.TU Board 2023
- 3×Asked in 2026, 2024, 2023List out the types of random sampling techniques.Answer coming1
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- List out the types of random sampling techniques.TU Board 2026
- List out non random sampling methods.TU Board 2024
- List out any four types of random sampling techniques.TU Board 2023
- 2×Asked in 2026, 2022Calculate the five number summary from the following data and comment on the shape of the distribution. 39, 26, 15, 8, 70, 11, 45, 60, 20, 32, 52Answer coming3
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- 2×Asked in 2024, 2023Given λ = 1.2 for a Poisson distribution, find p(x = 4).Answer coming1
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- 2×Asked in 2024, 2023Given that P(A) = 1/3, P(B) = 3/5 and P(A∩B) = 1/15 then find out the value of P(A ∪ B).Answer coming1
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- 2×Asked in 2026, 2023If the covariance between X and Y variables is 18 and the variance of X and Y are 16 & 81 respectively, find the coefficient of correlation.Answer coming1
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- If the covariance between X and Y variables is 18 and the variance of X and Y are 16 & 81 respectively, find the coefficient of correlation.TU Board 2026
- The covariance of X and Y is 30 and the variances of X and Y are 25 and 64 respectively. Find Karl Pearson's coefficient of correlation between X and Y.TU Board 2023
- 2×Asked in 2026, 2023The values of lower and upper quartiles are 40 and 70 respectively, then calculate coefficient of quartile deviation.Answer coming1
See the wording in each paper