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Data from a National Health Survey show that men's average weight is normally distributed with a mean of 172 pounds and a standard deviation of 29 pounds.
a. If a man is chosen at random, what is the probability that his weight is greater than 180 pounds?
b. If 100 men are randomly selected, what is the probability that their mean weight is greater than 180 pounds?
c. What is the probability that mean weight of the 100 men is less than 160 pounds?
Using graphing to check your answers is helpful. When you factor a trinomial into two binomials, each binomial represents a linear relationship. If you plot the two binomials (which are just lines) on a graph
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A swimming pool is 16 feet wide and has transverse cross-sections which look like: If the pool is being filled at a rate of 1.1 cubic feet per minute, how fast is the water level rising when the depth of water is 2 feet?
Develop a joint probability table and show the marginal probabilities. What is the probability of a household whose income exceeds $40,000 and who rejects the offer?
write an eqution of a line containing the given point parallel to the given line.express your answer in the form y=mxb.the equation
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a survey of 210 registered voters revealed that 107 of them plan on voting for the incumbent. find a 95 confidence
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