Loretta, who turns eighty this year, has just learned about blood pressure problems in the elderly and is interested in how her blood pressure compared to those of her peers. Specifically, she is...

Loretta, who turns eighty this year, has just learned about blood pressure problems in the elderly and is interested in how her blood pressure compared to those of her peers. Specifically, she is interested in her systolic blood pressure, which can be problematic among the elderly. She has uncovered an article in a scientific journal that reports that the men’s systolic blood pressure measurement for women over seventy-five is 132.8 mmHg, with a standard deviation of 6.3 mmHg. A) according to Chebyshev’s theorem, at least 84% of the measurements lie between ? mmHg and ? mmHg. B) according to Chebyshev’s theorem, at least what percent of the measurements lie between 120.2 mmHg and 145.4 mmHg.