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1. A cube has all 6 sides painted blue; this cube is then cut into 64 equal cubes. What is the probability, Pn where n = 1, 2, 3, that a little cube (one of the 64) picked at random will have n painted faces?
2. A person is given 4 coins each with equal and independent probabilities of being a nickel , a penny, a dime or a quarter. What is the probability the person has been 37 cents
a foreman for an injection-molding firm admits that on 11 of his shifts he forgets to shut off the injection machine on
jane and janet are both taking math 301. they are good students and work independently. jane has a 45 chance of earing
Describe the following types of sample designs, noting their similarities and differences. State also when it is appropriate to use each type of sample de- sign. Random sample and Simple random samples
Suppose that weights of bags of potato chips coming from a factory follow a normal distribution with mean 12.8 ounces and standard deviation .6 ounces.
during the study patients have relapses of the fever at an instantaneous rate of 1.85 per month. what is the
The foreman at a large plant estimates defective parts about 1.5% of the time. If the plant produces 25,000 parts in a week, what is the standard deviation (to the nearest tenth) for the number of defective parts?
Can we conclude from this that most workers there earn between $25 and $35 per hour? Is this the right interpretation for the margin of error?
if a coin is flipped 25 times with eight tails occuring what is the probability that no run of six or more consecutive
A civil service exam is given to 200 job applicants. In recent years, grades have followed a normal distribution with mean 66.5 and variance 100. The grades of the job applicants are distributed as follows:
What is the probability that the mean weight of sixteen randomly chosen men would exceed the individual weight from part (1)?
a large chain retailer purchases a certain kind of electronic device from a manufacturer. the manufacturer indicates
the distribution of heights of adult males is normally distributed with mean 68 inches and standard deviation 2.9
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