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Suppose the probability that you get an A in any class you take is .3 and the probability that you get a B is .7. To construct a grade point average, an A is worth 4.0 and a B is worth 3.0.
a. What is the expected value for your grade point average?
b. Would you expect to have this grade point average for each quarter or semester of your school career? Explain.
a researcher collects data on two independent samples. the first group consists of 20 human subjects has a sample mean
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We use statistical software to do the prediction and obtain the following output. 95% confidence interval for the average profit of companies with 500 units of sales is?
components used in a digital slr camera are manufactured with nominal dimension of 0.3 mm and lower and upper
Medical Red Blood Cell Volume. Total blood volume (in ml) per body weight (in kg) is important in medical research. For healthy adults, the red blood cell volume mean is about = 28ml/kg.
If we assume a normal distribution of Diastolic blood pressures, then between what two values can we be assured 99.7% of all Diastolic blood pressures will lie?
Find the proportion of working days in which anywhere from 750 to 850 tons is mined. Find the probability that on a given day, the yield will be below 665 tons.
Choose a number at random from the set of numbers from the set of numbers {1,2,3,4,5}. Now choose a number from the subset {1,...,X). Call this second number Y.
Consider a file which is marked as infected. Knowing that sometimes the test may be wrong, what is the probability that the file is indeed infected with the virus? You must explicitly show the steps you followed to arrive at your answer.
given that fz 1radic2pie-z22 -infin lt z lt infin is the probability density function for the standard normal random
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