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The horn on an auto operates on demand 99% of the time. Assume that each time you hit the horn, it works or fails independently of all other times.
a) How many times would you expect to be able to honk the horn with a 50% probability of not having any failures?
b) What is the expected number of times you hit the horn before the fourth failure?
The latter is a random variable (any function of a random variable is a random variable). So what"s the corresponding fact about conditional expectation?
Use the correct formula to find the probability that, out of 15 patients, exactly 11 are pleased with the service. Show your calculations or explain how you found the probability.
a music teacher had noticed that some students went to pieces during exams. he wanted to test whether this performance
Determine the mean annual amount spent on household consumption per family with a sample of 100 families, an average amount of $8,000 spent, and if the population standard deviation is $500,
Your quality control department has just analyzed the contents of 20 randomly selected barrels of materials to be used in manufacturing plastic garden equipment.
What recommendation would you have for each state to maximize revenue? c. Which state was most likely to be following a political unsupportable policy?
Following are different algebraic expressions of the production function. Decide whether each one has constant, increasing, or decreasing returns to scale.
The F-value is a ratio of two variance estimates. What variance is used as a numerator of the ratio?
a retired couple has 2450000 in a savings account that earns 2.22 interest compounded quarterly. how much money can
a motor bike battery manufacturer found that the life of their batteries is normally distributed with a mean life span
In a randome sample of 32 units of this year's version of the Vagabond the mean output power is 42 watts, with a standard deviation of 8 watts.
She has a history of being successful at getting a donor on 55 percent of her calls. If June has a quota to get at least four donors each day.
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