Can anyone PLEASE HELP ME with this question i really need help
2 answers:
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The standard deviation of a particular sample is equal to the standard deviation divided by the square root of the sample size. That is,
The mean of a particular sample is equal to the mean of the set the sample was taken from. That is,
The mean of a particular sample is equal to the mean of the set the sample was taken from. That is,
Answer:
Therefore,
Step-by-step explanation:
Given:
To Find:
a₂₁ = ?
Solution:
Let,
We require ' a₂₁ ' i.e Second Row First Column Element
So on Comparing we get
∴
Therefore,