Related Posts

---

Q. If each observation of the data is increased by 5, then what happens to its mean?

Q. If the observations of a variable X are, -4, -20, -30, -44 and -36, then the value of the range will be:

Q. In a regression analysis if r2 = 1, then :

Q. An index time series is a list of nos. for two or more periods of time

Q. Cyclical variations are caused by

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

Q. In the class intervals 40 – 50, 50 – 60, the number 50 is included in which of the following?

Q. Laspeyre's index = 110, Paasche's index = 108, then Fisher's Ideal index is equal to:

Q. One of the following methods of calculating mode is:

Q. In quality control of manufactured items, the most common measure of dispersion is: