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Suppose that a computer programmer, on average, makes 3 errors in 500 lines of code. What is the probability that the programmer will make no errors in 250 lines of code?
A feed company is developing a feed supplement from two grains A and B. Each kilogram of A contains 0.3 grams of protein and 0.2 grams of carbohydrates; each kilogram of B contains 0.9 grams of protein and 0.1 grams of carbohydrates.
What is the expected number of audits for the 6 randomly selected individuals? What is the standard deviation for the number of audits for the 6 randomly selected individuals?
Illustrate what does weighting add to usefulness of moving averages and explain how is it done. The yield on a thirty year treasury note at the end of every year since 1990 is recorded below.
Forecast this time series for the first 4 months of the next year using the most appropriate method. Defend your choice of forecasting method.
The chamber of commerce of a Florida Gulf Coast community advertises that area residential property is available at a mean cost of $125,000 or less per lot.
Last week Sarah had exams in Math and in Spanish. On the Math exam, the mean was u, = 30 with a = 5, and Sarah had a score of X - 45. On the Spanish exam, the mean was u, = 60 with 0 = 6 and Sarah had a score of X = 65. For which class must Sarah ..
an average of 5 cars arrive per hour at a restaurant. assume that the number of cars arriving perhour follows poisson
Determine the critical path and project completion time.
Different populations yield the following data. 1 = 236, 2 = 905, = 88 = 13 The sample size is 381 for both samples. Find the 85% confidence interval?
Suppose that Total Revenue = 200Q and Total Cost = 80 + 50Q where Q, the quantity sold, is a random variable with expected value 20 and variance 4.
Detremine the mean, standard deviation, and variance for this frequency distribution.
Five hundred draws are made at random with replacement from a box of numbered tickets; 276 are positive. someone tells you that 50% of the tickets in the box show positive numbers.
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