Cholesterol is a fatty substance that is an important part of the outer lining of cells in the body of animals. its normal range for an adult is 120–240 mg/dl. the food and nutrition institute of the philippines found that the total cholesterol level for filipino adults has a mean of 159.2 mg/dl and 84.1% of adults have a cholesterol level below 200 mg/dl. suppose the total cholesterol level is normally distributed. (a) determine the standard deviation of this distribution.
(b) what are the quartiles (the 25% and 75% values) of this distribution?

square pyramid

step-by-step explanation:

square prism looks like nothing like that

triangular prism has a rectangular base instead of a square base

tetrahedron has a triangular base

x + y = 90 5x – 10y = 90 90 – 10y = 5x 90 + 10y = 5x

step-by-step explanation:

last month maria hiked the 5-mile mountain trail a number of times and she hiked the 10-mile canal trail several times. let x represent the number of times she hiked the 5-mile trail, and let y represent the number of times she hiked the 10-mile trail. if she hiked a total of 90 miles, which equation can be used to find the number of times maria hiked each trail? x + y = 90 5x – 10y = 90 90 – 10y = 5x 90 + 10y = 5x

step-by-step explanation:

abc

if the probability is 1/12, 75 people will receive a $25 gift card

step-by-step explanation: