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On the first exam your score was a 73%, on the second it was an 73%. The first exam counts for 20% of your grade and the second exam counts for 28% of your grade. What is your grade in the class so far? (Please round your answer to 2 decimal places)
There is 0.75 probability that you will get promotion or raise. Probability of getting promotion and raise is 0.50. Determine the probability to receive a raise.
Let X and Y be independent, uniformly distributed random variables on U(0,1). Define Z = X/(X-Y) . Find the cumulative distribution function and the probability density function of Z. Make a sketch of the density function.
a) Solve the Helmholtz equation when u is a function of r only in 2-D. b) Solve the Helmholtz equation when u is a function of r only in 3-D.
a researcher is interested in estimating the percentage of us residents without health insurance. how large a sample is
Her students this semester can be considered a sample from the population of all students she might teach, so she compares their mean score with 72.
The wheat harvesting season is short. Farmers deliver their truck loads of wheat to a giant central storage bin within a two-week span. Because of this, wheat-filled trucks waiting to unload and return to the fields have been known to back up for ..
Construct a probability distribution table. (b) if p=0.4, find the expected net profit. (c) what is the smallest value of P for which the owner will take the risk to undertake this project?
1. for each equation below identify what type of equation it is linear or exponential which variable is the independent
The manager wishes to estimate the mean time with 99 percent confidence and a margin of error of ± 0.50 minutes. Given this, what must the sample size be?
He came to work at 8:00 and began to make calls. By 11:00 a.m., his survey was done. Don't discuss what is not said. Discuss what is wrong with what is said.
State the alternative hypothesis in statistical terms. Define the critical region by drawing the distribution and labeling the z-critical value.
What is the relevance of Pearson's r? What does it tell you about the correlation between variables? What is one example of a null hypothesis and the research hypothesis that goes with it?
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