Please help me understand how to do this :) Enter the number, in decimal form,
that belongs in the green box

Plz me plz i will give a brain just plz

Logan wants to know how many skateboards have defective parts. he inspects 20,000 skateboards and keeps track of the number of defects per board. use his probability distribution table to find the expected value for defects on a skateboard.

Ahyperbola centered at the origin has a vertex at (-6,0) and a focus at (10,0)