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Suppose we roll two fair six-sided dice and flip 12 coins. What is the probability that the number of heads is equal to the sum of the numbers showing on the two dice?
An opinion poll in California uses random digit dialing to choose telephone numbers at random. Numbers are selected separately within each California area code.
purdue students are able to connect with itap server to use some software remotely on their own computer. assume that
Managers compared to those who do not; Or, whether ones political affiliation is related to gender. These are just a few examples; be creative and think about what piques your interest. You might also address a problem that you may want to look at..
Use technology to model this contest. Try your simulation 10 times and record the number of free nights awarded each time. Did anyone win five or more free nights' stay?
your manager who just read an abridged version of a statistics book wants you to test hypotheses for the difference in
a) What is the current yield on the bonds? b) The YTM? The effective annual yield?
Suppose that 20 minutes are selected independently and weighted. Let Y equal the number of these mints that weigh less than 30 grams.
Explain the difference between the null and alternative hypothesis. Which one can be proven in a statistical sense?
A website recorded whether visitors click on a shown ad. The following plot shows the outcomes for a sequence of 100 visitors, with a 1 shown if the visitor clicked on the ad and a 0 otherwise. Complete part (a) and (b) below.
A standard deviation of 12. If the data for both tests are normally distributed, on which test did the student score better relative to the other students in each class?
Develop a list of four elements (variables) you would like to use to "measure" the association between exposure to violence and future criminality. Provide a brief explanation of the reasons you chose the variables.
suppose cracks exist in a certain material and the crack length in micrometers microm of a randomly selected crack is
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