Answer:
Option C: None of the above
Step-by-step explanation:
1/4 - 5/4 = -4/4
That's so easy sorry for saying that The answer is 333.8
To solve the first problem, you have to multiply both sides by 3, or 3/1.
3/1(n/3)=2(3)
3n/3=6
1n=6, or n=6.
To solve problem 2, simply divide both sides by 5.
5t/5=20/5
t=4
Hope this helps :-)
Answer:

And if we take the average value of the sample variances from all the possible random samples we will get the population variance:

So then the best answer for this case would be:
The average value of the sample variances from all the possible random samples will be exactly the population variance
Step-by-step explanation:
For this case we can define the sum of squares with this formula:

Where:

And we can find the sample variance with this formula:

And if we take the average value of the sample variances from all the possible random samples we will get the population variance:

So then the best answer for this case would be:
The average value of the sample variances from all the possible random samples will be exactly the population variance
This is very easy. 5 - 1 is 4. Take one away to reserve for the fraction. 9 - 4 = 5. 1 = 6/6. 6/6 = 4/6 is 2/6 or 1/3. It is 5 2/6 or 5 1/3