n a long series of coffee orders, it is determined that 70% of coffee drinkers use cream, 55% use sugar, and 35% use both. a venn diagram. one circle is labeled c (0.35) and the other is labeled s (0.20). the shaded area is labeled 0.35. the area outside of the diagram is labeled 0.10. suppose we randomly select a coffee drinker. let c be the event that the coffee drinker uses cream and s be the event that the coffee drinker uses sugar. what is the probability that a randomly selected coffee drinker does not use sugar or cream? what is the probability that a randomly selected coffee drinker uses sugar or cream?