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A 6-sided die rolled twice. Let E be the event "the first roll is a 2" and F the event "the second roll is a 2"
Find the probability of showing a 2 on both rolls. Write your answer as a reduced fraction.
Suppose a utility company polls customers to assess their satisfaction with its services.
you start with scatterplots and correlation before regression; scatterplots need to be much more refined to be of use; so, you have a relationship - how much of the variation does the model explain and what are the practical conclusions?
A researcher tests whether the political affiliation of individuals is related to or independent of whether they have positive views of the economy.
Construct a 90% confidence interval for the population proportion p . Does your result agree with your conclusion in part (a)?
Determine the probability that none of the calculators will be defective?
What is the probability that a customer will get at least 20% off?
An individual federal tax return form asks, among other things, for the given information: - Describe the scale of measurement of each variable, and state whether the variable is qualitative or quantitative.
a certain disease is found in one person in 5000. if a person does have the disease the test will show a positive
Which variable is the independent variable and which is the dependent variable? Write out the regression equation and sketch it on the plot. What percentage of the variability in the defect rate can be explained by differences in volume?
Use the data from the variable ("avgspeed") created in the previous exercise to recode the values into a nominal (string) variable. Your task is to use SPSS's.
The sample proportion of grandparents as primary caregivers(p-hat) is to be calculated. What is the standard deviation of the sampling distribution of p-hat?
What are the key components of consideration that went into forming the Texas Constitution?
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