Statistics

Question 1

What does the variance of a distribution tell us?

Answer 1

How spread the data or results are from each other.

Question 2

If a set of data has a variance of 0 , what does that suggest?

Answer 2

All values of that data are the same.

Question 3

If X is Poisson what does this mean about it’s data type , and what values can it accept?

Answer 3

Means it is discrete random so it can only take whole values.

Question 4

Equation for Poisson distribution

Answer 4

P(X=x)