Question 1201422: The following information was obtained from a survey of insurance companies about the number of claims put in by drivers in the first five years of getting their licence.
6,2,2,1,6,1,8,5,6,4,2,4,4,5,8,8
Find the standard Deviation?
I am not sure whether to use sample standard deviation or population standard deviation??
Found 2 solutions by Theo, ikleyn:
Answer by Theo(13342)   (Show Source):
You can put this solution on YOUR website! good question.
it's not clear from the problem statement.
you're left to guessing which is the right one.
a suervy could have been sent to all the insurance companies, or just a subset of all the insurance companies.
assuming your population is the insurance companies that were surveyed, then use the population standard deviation.
it's 50-50, but i would go with that.
Answer by ikleyn(52848)  (Show Source):
You can put this solution on YOUR website! .
I posted this request to GOOGLE
whether to use sample standard deviation or population standard deviation
Below is what GOOGLE answered me
The population standard deviation is relevant where the numbers that you have in hand
are the entire population, and the sample standard deviation is relevant
where the numbers are a sample of a much larger population.
The source is THIS
https://stats.stackexchange.com/questions/485326/confused-when-to-use-population-vs-sample-standard-deviation-in-engineering-test#:~:text=The%20population%20standard%20deviation%20is,of%20a%20much%20larger%20population.
Probably, it is not 100% rectified answer, which you would want to get,
but it is what is really possible to get.
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