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Q. Half of the difference between upper and lower quartiles is called:

Q. The mean of 10 observations is 10. All the observations are increased by 10%. The mean of increased observations will be:

Q. In order to compare two series we can use

Q. The sum of squared deviations is minimum when taken from:

Q. The value of a correlation is reported by a researcher to be r = −0.5. Which of the following statements is correct?

Q. If the sum of deviations from median is not zero, then a distribution will be:

Q. In a moderately skewed distribution, the following equation indicates the relationship among mean, median and mode:

Q. The mean weight of 150 students in a class is 60 Kg. The mean weight of Boy students is 70 Kg and that of a girl students is 55 kg. Find the number of Boys and Girls in the class.

Q. Which index number is called as ideal index number.

Q. How many type of data are there in Statistics