In one country, there exists a food and drug administration that has veto power over the choice of drug names. Last year, it used this power regularly, rejecting 39% of the names proposed by companies for reasons such as sounding too much like another product. Suppose that a company spends $700,000 developing each proposed name, but there's a 50-50 chance of a name being rejected. If the review of names occurs independently, what is the probability that the company will spend more than $2,100, 000 developing a name?
Since company spends $700,000 developing each proposed name so for 3 reviews company need to spend $700,000 * 3 = $2,100,000. That is company will spend more than $2,100, 000 developing a name, if more than three names rejected.
Let X is a random variable shows the number of rejected. Here X has geometric distribution with parameter p = 0.50. The probability that the company will spend more than $2,100, 000 developing a name is
Answer: 0.125
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