Suppose that the blood pressure of the human inhabitants of a certain pacific island is distributed with mean, μ = 99 mmhg and standard deviation , σ = 9 mmhg. according to chebyshev's theorem, at least what percentage of the islander's have blood pressure in the range from 66.6 mmhg to 131.4 mmhg ?

Simplify (2^5/3^2)^4 a. 2^20/3^8 b. 2^9/3^8 c. 8^5/12^2 d. 2/3^2

Monitors manufactured by tsi electronics have life spans that have a normal distribution with a standard deviation of 1800 hours and a mean life span of 20,000 hours. if a monitor is selected at random, find the probability that the life span of the monitor will be more than 17,659 hours. round your answer to four decimal places.

Solve the system of equations using the linear combination method. {4x−3y=127x−3y=3 enter your answers in the boxes.