Answer:
Degree of freedom = 19
Step-by-step explanation:
We are given the following information in the question:
Sample size, n = 20
For a t-test hypothesis it was claimed that the population mean is greater than 89 second.
1) df
Df denotes the degree of freedom.
- The Degrees of Freedom refers to the number of values involved in the calculations that have the freedom to vary.
2) Degree of freedom = n - 1
where n is the sample size
Degree of freedom = 20 - 1 = 19
Answer: 78125 ways
Step-by-step explanation:
Given : The number of possible grades = 5
The number of students in the class = 7
Then, the number of ways to assign grades to a class of seven students :_
Hence, there are 78125 ways to assign grades to a class of seven students .
Find the 10th term in the following arithmetic sequence if the constant being added is -12
Step-by-step explanation:
20 - 12 = 8
8 - 12 = -4
-4 - 12 = -16
So the sequence will be
20; 8; -4; -16
an = 20 - 12(n - 1)
a10 = 20 - 12(10 - 1) = -88
Answer:
no she wont. because the total cost of the skateboard will be 127.31
Step-by-step explanation:
Answer:
10 I think
Step-by-step explanation:
