Suppose a population is known to be normally distributed with a mean, μ, equal to 116 and a standard deviation, σ, equal to 14. Approximately what percent of the population would be between 88 and 130?
Accepted Solution
A:
Answer:81.9% of the population would be between 88 and 130.Step-by-step explanation:Many of today's calculators have built-in probability distribution functions. Here, on a TI -83 calculator, we need the function normalcdf(.Type in the following: normalcdf(88,130,116, 14)The result is the desired probabiity: 0.819, which is equivalent to 81.9%.81.9% of the population would be between 88 and 130.