Brandon S.

Could someone please explain in layman's terms what CDF is? If someone could show a real-life example where this could be useful, it would be great.

(I'll post my own answer to this, but don't hesitate to post your own!) Student's t-distribution, or T-distribution, was introduced in 1908 by William Sealey Gossett writing under the pseudonym... more

Can anyone give me a simple explanation (i.e. without too many equations) of what is the use of moments in statistics? Why do we need moments? What can we learn from them?

For the description​ below, state the correlation clearly.​ (For example, state that​ "there is a positive correlation between variable A and variable​ B.") Then state whether the correlation is... more

Determine the required value of the missing probability to make the distribution a discrete probability distribution. x ​P(x)    3 0.26 4 ​? 5 0.30 6 0.29 ​P(4) = nothing  ​(Type an... more