SOLUTION: Respected Sir / Mam , Please help me to solve this question. I will be very grateful for your help . My question is If standard deviation = 20 and sample size is 100 then stand

Question 485395: Respected Sir / Mam ,
Please help me to solve this question. I will be very grateful for your help .
My question is
If standard deviation = 20 and sample size is 100 then standard error of mean is
As the answer given is : 2
Please provide me the steps for this question.
Thank you

Answer by MathLover1(20850) (Show Source): You can put this solution on YOUR website!

Formula for standard error () is standard deviation divided by the square root of the sample size, or .

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