What is the number of degrees of freedom in each of the following?

1) What is the number of degrees of freedom in each of the
following?
A. a
sample of 10 observations
B. a
sample of 100 observations
C. a
sample of 250 observations

2) What is the two-tail probability in each of the following?
a. n=
10, S.D. from the mean = 2
b. n=
10, S.D. from the mean = 3
c. n =
100, S.D. from the mean = 2

3) What is the one-tail probability in each of the following?
A. n =
10, S.D. from the mean = 2
B. n =
10, S.D. from the mean = 3
C. n =
100, S.D. from the mean = 2

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