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Questions: 1. What is the meaning of the expected value of a probability distribution?
2. What are the four properties that must be present in order to use the binomial distribution?
3. What are the four properties that must be present in order to use the Poisson distribution?
4. When do you use the hypergeometric distribution instead of the binomial distribution?
Discuss what the standard deviation means. Use one of the company's historical data sets to calculate the standard deviation of the selected data for the last 5 years.
The theorem that Pn → W was proved only for the case that P has no zero entries. Fill in the details of the following extension to the case that P is regular. Since P is regular, for some N, PN has no zeros.
Consider the modified tree diagram below.- Identify and determine each missing path probability.- Find P(A ∩ C) and P(Ar ∩ B).- Find P(D).
a study is conducted to determine if time of day has any effect on test grades. an introductorypsychology class is
The middle five weeks, and 60% during the last 5 weeks. Would a time-series graph of this data be appropriate? Give a reason for your answer.
The mean of major student taking the GRE test in 2010 was 1000 with a standard deviation of 230. if you select a random sample of 75 students, what is the probabbility that the mean score is below 950?
Pages a user can expect from a print cartridge. A sample of 10 cartridges revealed the following number of pages printed. What is the point estimated of the population mean?
Is there significant evidence at the 5% level that conductors consume more calories per day than do drivers? Use the two-sample t method to give a P-value, and then assess significance.
This prediction is based on extrapolation, which assumes that the current rate of increase will continue indefinitely. Is that a reasonable assumption? Do you agree with the prediction? Explain.
Select a US citizen and a citizen of China at random, independently of one another. Determine the probability that both have type O blood?
Please explain: if the mean is 26 and the standard deviation is 5, find the probability that x assumes a value between 28.5 and 51.0.
How is data screening related to the assumptions of the statistic you will choose to analyze your data?
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