A building is 50 feet tall, Imagine you are standing 30 feet away from it. What is the angle when you are looking up at your friend on the top of building?

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.)