Answer:
It's B
Step-by-step explanation:
Answer:
4
Step-by-step explanation:
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
It should be n+4=3n. Hope this helps
Answer:
10³⁰
Step-by-step explanation:
firstly working out without the power of 3

this is the same as 10¹⁵ ÷ 10⁵
here the bases are the same and it's division so we subtract the powers
15 - 5 = 10
10¹⁵ ÷ 10⁵ = 10¹⁰
we are left with (10¹⁰)³, multiply the powers
10 × 3 = 30
final answer = 10³⁰