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Q. Which of the following can’t be a component for a time series plot?

Q. ___is particularly suitable for the construction of index nos.

Q. If bxy and byx are two regression coefficients, they have:

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Q. For a positively skewed distribution, mean is always:

Q. The correlation coefficient is used to determine:

Q. In a symmetrical distribution, Q3 – Q1 = 20, median = 15. Q3 is equal to: