Solar energy cells. According to Wired(June 2008), 35% of NW the world’s solar energy cell...

Solar energy cells. According to Wired(June 2008), 35% of NW the world’s solar energy cells are manufactured in China. Consider a random sample of 5 solar energy cells, and let x represent the number in the sample that are manufacturedin China. In the next section, we show that the probabilitydistribution for x is given by the formula,

a. Explain why x is a discrete random variable.

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b. Find p( x) for x= 0, 1, 2, 3, 4 , and 5.

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c. Show that the properties for a discrete probability distribution are satisfied.

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d. Find the probability that at least 4 of the 5 solar energy cells in the sample are manufactured in China.