IQ scores (as measured by the Stanford-Binet intelligence test) in a certain country are normally distributed with a mean of 100 and a standard deviation of 19. Find the approximate number of people...


IQ scores (as measured by the Stanford-Binet intelligence test) in a certain country are normally distributed with a mean of 100 and a standard deviation of 19. Find the approximate number of people in the country (assuming a total population of 323,000,000) with an IQ higher than 128. (Round your answer to the nearest hundred thousand.)

  people


Jun 02, 2022
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