Consider the following statements:
1. Quartile deviations is more instructive range as it discards the dispersion of extreme items
2. Coefficient of quartile deviaton cannot be used to compare the degree of variations in different distributions
3. There are 10 deciles for a series
Which one of the above statements is/are correct?
A. 1, 2 and 3
B. 2 alone
C. 3 alone
D. 1 alone
Answer: Option C
This Question Belongs to Commerce >> Business Statistics And Research Methods
the answer is wrong because there are 9 deciles in a data set to divide the data into ten equal parts
Option D is correct
There are 9 deciles in a series from D1 to D 9. Deciles divides a series into 10 equal parts