The long-distance calls made by South Africans are normally distributed with a mean of 16.3 minutes and a standard deviation of 4.2 minutes. For 10500 South Africans, what is the expected number of callers whose calls last more than 20 minutes (rounded off to zero decimals)? O A. 4539 OB. 8511 O C. 701 O D. 1989

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Q: In a city with three high schools, all the ninth graders took a Standardized Test, with these…

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