Q.1.
Measures of precision are also known as ___________
Q.2.
For symmetrical distribution, mean=median=mode.
Q.3.
Given for an asymmetrical distribution, median=mean=what is the mode?
Q.4.
Find the range of the following observations: 1,2,4,7,8,13.
Q.5.
What is the mean deviation from the mean of the following observation:9,9,2,3,6,9,4?
Q.6.
The square of the standard deviation is variance.
Q.7.
The standard deviation isand the mean isWhat is the coefficient of variation?
Q.8.
If the coefficient of variation of a data set A isand for data set B it iswhich data set is more consistent?
Q.9.
If the variance of the datais 23.Then, what is the variance of34?
Q.10.
A set of observations xxxxhas a standard deviation =Each of these observations is added with a constant k. What is the new standard deviation?