In playing draw poker, a flush is a hand with five cards, all in one suit. You are dealt five cards and can throw away any of these and be dealt more cards to replace them. If you are dealt four clubs and a spade. What’s the probability that you can discard the spade and be dealt a club to fill out your flush?

9.4.34  question   to estimate the height of a stone  figure, an observer holds a small square up to her eyes and walks backward from the figure. she stops when the bottom of the figure aligns with the bottom edge of the  square, and when the top of the figure aligns with the top edge of the square. her eye level is 1.811.81 m from the ground. she is 3.703.70 m from the figure. what is the height of the figure to the nearest hundredth of a  meter?