What is the probability of randomly landing on a section that is NOT green then a blue? CHOOSE ONE: Simple Event or Compound Event?

If the event is compound, is it Independent or Dependent?

Finish the Probability statement: P( ) =

You are standing next to a really big circular lake. you want to measure the diameter of the lake, but you don't want to have to swim across with a measuring tape! you decide to walk around the perimeter of the lake and measure its circumference, and find that it's 400\pi\text{ m}400? m. what is the diameter dd of the lake?