Two Stats problems that are confusing me

Dason

Ambassador to the humans
#2
Hi! A few things -

1) Your links are broken
2) We'd prefer it if you didn't link to images in the first place so that the question can be actually searched for. If you need math symbols and know latex you can use [noparse]\(Insert latex here\)[/noparse] to add latex to your posts. Also!

Hi! :welcome: We are glad that you posted here! This looks like a homework question though. Our homework help policy can be found here. We mainly just want to see what you have tried so far and that you have put some effort into the problem. I would also suggest checking out this thread for some guidelines on smart posting behavior that can help you get answers that are better much more quickly.