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Question 1
Consider the following measures of central tendency for a set of N numbers:
1) Arithmetic mean
2) Geometric mean
Which of the above uses/use all the data?
Question 2
If M is the mean of n observations x1 –k, x2 – k, x3 – k,…., xn – k, where k is any real number, then what is the mean of x1, x2, x3, ……, xn?
Question 3
For which of the following sets of numbers do the mean, median and mode have the same value?
Question 4
In a discrete data, if the median is double of the mean then, mode will how many times of the mean?
Question 5
The standard deviation of the observation 5, 5, 5, 5, 5 is:
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