Answer Happy

Lisa, who turns eighty years old this year, has just learned about blood pressure problems in the elderly and is interested in how her blood pressure compares: to those of her peers. She has uncovered an article in a scientific journal that reports that the mean systolic blood pressure measurement for women over seventy-five is 133.3 mmHg, with a standard deviation of 6.9 mmHg. Assume that the article reported correct information. Complete the following statements about the distribution of systolic blood pressure measurements for women over seventy-five. (a) According to Chebyshev's theorem, at least 84% of the measurements lie between mmHg and mmHg. (Round your answer to 1 decimal place.). (b) According to Chebyshev's theorem, at least (Choose one) of the measurements lie between 119.5 mmHg and 147.1 mmHg. X ?