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

Q. The general purchasing power of the currency of a country is determined by:

Q. The coefficient of variation cannot be meaningfully used to compare the variability of two or more sets of data, when

Q. In regression equation y=a+βx+e, both x and y variables are

Q. The smaller the variance the less spread of the data around the mean

Q. The following numbers represent the ages of people on a bus: 3, 6, 27, 13, 6, 8, 12, 20, 5, 10. Calculate their mean of their ages.

Q. In a moderately asymmetrical distribution, the mode and mean are 32.1 and 35.4 respectively. Calculate the median.

Q. The regression coefficients re independent of change of origin but:

Q. The rank correlation coefficient of a debating contest involving 10 participants was calculated as 0.6. However, it was later discovered that the difference in the ranks of some participants was read as 8 instead of 3. Find the correct correlation coefficient:

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