In a sale there is 10% of all prices. a chair costs £63 in the sale. hoow mutch was it before the sale?

Name each raycalculation tip: in ray "ab", a is the endpoint of the ray.

Determine the required value of the missing probability to make the distribution a discrete probability distribution. x p(x) 3 0.23 4 ? 5 0.51 6 0.08 p(4) = nothing  (type an integer or a decimal.)

I’m really confused and need to learn this