Statistics Flashcards
1
Q
How do you calculate degrees of freedom for Chi squared?
A
n - 1
2
Q
How do you calculate degrees of freedom for Students T test?
A
(n1 - 1) + (n2 - 1)
3
Q
Why would you use correlation coefficient?
A
when looking for a correlation between 2 variables/ name variables
4
Q
Why would you use Students T-test?
A
when looking for a difference between 2 means
5
Q
Why would you use Chi- squared?
A
when looking for a different between frequencies in categories
6
Q
Why are Log10 numbers sometimes used?
A
large range in numbers
