A particularly long trafic light on your morning commute is green 30% of the time that you approach it, Assume that each morning represent an independent trial . Let X denote the number of trials the light is green. a) Over 10 mornings , what is the probability that the light is green on exactly 3 days ? Round your answer to three decimal places (e.g. 0.987 )  b) Over 20 mornings , what is the probability that the light is green on exactly 6 days ? Round your answer to three decimal places (e.g. 0.987 ) .  c) Over 20 mornings , what is the probability that the light is green on more than 6 days ? Round your answer to three decimal places (e.g. 0.987 ).

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