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If a asteroids are entering the earth's atmosphere and disintegrate with a rate that reduces their size by a factor on ½ by the time they strike the earth, assuming that they all strike the earth at a perpendicular angle to the surface , what is the likelihood of a given point being struck by an asteroid if the path density of asteroids is 100 asteroids per square km per/ day passing through a plane perpendicular to the earth and a size distribution for the radii, p(r)=[exp(-qr)]/r where q =0.1.
Do the six measurements present sufficient evidence to indicate that the average weight of the diamonds produced by the new process is in excess of 0.5 karat?
What is the probability that 0, 1, 2, or 3 hypertensives will be identi ed in such sibships if the hypertensive status of 2 siblings in the same family are independent events?
Critically discuss the relationship between a sample and the type of population it is taken from? What population factors should be taken into consideration?
what requirements are necessary for a normal probability distribution to be a standard normal probability
what is the realtion between the significance level of a hypothesis test and the probability of making a type 1
A previous study of nickels showed that the standard deviation of the weight of nickels is 150 milligrams.
Which promises the profit of $24,000 with the probability of .7 or a loss (due to bad weather, strikes, and such) of $8000 with the probability of .3. Determine the expected profit?
breast-feeding mothers secrete calcium into their milk. some of the calcium may come from their bones so mothers may
Calculate the mean and standard deviation of the following data sets, then produce a five number summary and box plot of data.
Suppose that each passenger may get out of the elevator at either of the 2nd or the 3rd floor. Note that 8 passengers are different. How many ways may the 8 passengers get out of the elevator?
Since Richard has not attended class recently, he doesn't know any of the answers. Assuming that Richard guesses on all ten questions, what is the probability he answers at least half correctly?
Explain whether the authors used a population or a sample. Explain how this could have affected the results. If a sample was used, was it representative of the entire population? Why or why not?
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