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Of all the flashlights in a large shipment, 11 % have a defective bulb, 15 % have a defective battery, and 6 % have both defects. If you purchase one of the flashights in this shipment, find the probability that it has the following:
a. defective bulb or a defective battery
b. a good bulb or a good battery
c. a good bulb and a good battery
Using your workplace, present or prior, or an organization with which you are affiliated, identify a dependent variable and an independent variable of interest to you
Anthony is measuring his participants' emotional states in two different ways (self-report and galvanic skin response) in order to gain a greater confidence that he is actually measuring the emotional that he thinks he is.
Suppose the population mean is 50.6 pounds with a population standard deviation of 1.62 pounds. Suppose we take thousands of samples with a sample size of 5.
Find out the mean to the nearest whole number, for the following list of numbers: 20, 43, 67, 52, 67, 44, 62, 90, 21, 19, 15
Consider the following portion of an electric circuit with three relays. Current will flow from point A to point B if there is at least one closed path when the relays are activated. The relays may malfunction and not close when activated.
The gambler is paid later as follows, depending on the number of winners he picked. What is his expected gain? Remember, a loss is a negative gain, and that the bookie keeps the gambler's $20.
The Texas Transportation Institute at Texas A&M University conducted a survey to determine the # of hours per year drivers waste sitting in traffic.
Develop a linear regression equation for these data and forecast how much money Robert will win if he spends $30.
What types of variables are measured using Pearson coefficient, and what types variables are measured with chi square; I am looking for names of variables (e.g., nominal, interval)?
Suppose it costs $25 per student for the administrators to provide the course materials.
What is the probability of getting the first questions correct and miss the fourth with five possible answers to each question?
The standard deviation of the sample is $3,000. Interpret your findings.
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