Answer: 14
Step-by-step explanation:
- Degrees of freedom is the number of values in the evaluation of a test statistic that are free to vary.
For t-statistic , the degree of freedom for a sample with sample size 'n' is given by :-
Given : Sample size : n-1
Then, the number of degrees of freedom the t-value will have :-
Hence, the t-value will have 14 degrees of freedom.
I am not sure ...but I tried solving it
Answer:
20x+6
Step-by-step explanation:
The perimeter is
P= 2l + 2w
P = 2( 8x-1) + 2(2x+4)
Distribute
= 16x-2 + 4x+8
Combine like terms
= 20x+6
Given:
To find:
The value of .
Solution:
We know that,
Putting the given values, we get
Taking square on both sides, we get
Therefore, the value of is .