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Question: Suppose that the longevity of a light bulb is exponential with a mean lifetime of eight years. If a bulb has already lasted 12 years, find the probability that it will last a total of over 19 years.
2. In a small city, the number of automobile accidents occur with a Poisson distribution at an average of three per week.
a. Calculate the probability that there are at most 2 accidents occur in any given week.
b. What is the probability that there is at least two weeks between any 2 accidents?
What are the primary advantages and disadvantages of employing sampling in this application?
approximate the expectation and the variance of a random variable using simulations. we are able to approximate the
Imagine you are a manager at a major bottling company. Customers have begun to complain that the bottles of the brand of soda produced in your company contain less than the advertised sixteen (16) ounces of product.
Using Excel or any Regression Program, please run the sold price as a function of Lot Sqt, BR, and Age - also bring the computer output of the Regression.
(c) Assuming that each of the forecasts for the next three seasons is correct, what would the last-value method forecast as the water consumption in each of the four seasons next year?
according to the empirical rule if the data form a bell-shaped normal distribution what percent of the observations
Find the short-run competitive equilibrium: the price per ride, number of rides per day, and the profit per cab per day. Is the taxicab market in long-run equilibrium?
a sample of 90 women is obtained and their heights in inches and pulse rates in beats per minute are measured. the
A study regarding the relationship between age and the amount of pressure sales personnel feel in relation to their jobs revealed the following sample information.
an electronics company wants to compare the quality of their cell phones to the cell phones from three competitors.
you take a trip by air that involves three independent flights. if there is an 82 percent chance each specific leg of
assume that the helium porosity of coal samples taken from any particular seam is normally distributed with true
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