Statistics And Probability Question 414
Question: The S.D of 15 items is 6 and if each item is decreased or increased by 1, then standard deviation will be
[Pb. CET 1994,98]
Options:
A) 5
B) 7
C) 91/15
D) 6
Show Answer
Answer:
Correct Answer: D
Solution:
If each item of a data is increased or decreased by the same constant, the standard deviation of the data remains unchanged.
BETA
