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Two dice are tossed. Let A be the event that "the sum is 7." Let B be the event that "first die is 6." Let C be the event that "second die is 4 or more."
i.) Explicitly, write each event and calculate its cardinality.
ii.) Show that any two of the events are independent.
iii.) Are the three events independent? Show work.
a chromium rod is heated by convection in a furnace at 2100 k. the radius of the rod is 5 mm and its initial
State the main points of the Central Limit Theorem for a mean. B. Why is population shape of concern when estimating a mean? What does sample size have to do with it?
The proportion of adults in the sample, as her estimate of p, the proportion of adults in the pond population. Find using the normal approximation with the continuity correction.
If you must estimate the population mean within 2 days, how many outside salespeople should you sample? Use the 90 percent confidence level.
Five students took a math test before and after tutoring. Their scores were as follows. Using a 0.01 level of significance, test the claim that the tutoring has an effect on the math scores.
suppose xyand c represent the length width and perimeter of a flat rectangular sheet metal part. note that xis a normal
Find the z-score for each score in the population. Transfer the original population into a new population of N=5 scores with a mean of μ=60 and a standard deviation of σ=8
With a z score of 1.5, what percentage often scores are above 52 and what percentage of the scores are above 60?
an automobile insurance firm wants to find the average amount per claim for auto body repairs. its summary records
Explain the difference between a discrete and a continuous random variable. Give two examples of each type of random variable.
Finnish Furniture manufactures tables in facilities located in three cities- Reno, Denver, and Pittsburgh. The tables are then shipped to three retail stores located in Phoenix, Cleveland, and Chicago.
suppose that an investigator believes that virtually all values in the population are between 38 and 70. the
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