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The probability of successfully rehabilitating a convicted criminal in a penal institution is 0.40 . A random sample of 3 convicted criminals is selected from the institution. A ssume that the behavior of each person does not depend on that of others.
a) What is the probability that all of the 3 criminals are successfully rehabilitated?
b) What is the probability yhat none of the 3 criminals are successfully rehabilitated?
c) What is the probability that at least one of the 3 is successfully rehabilitated?
A pair of fair 6-sided dice are tossed. Find the probability of a total of 7 spots on top. Find the probability of at least spots on top.how do you do this
We can assign probabilities to values of using the normal density curve with mean 0.30 and standard deviation 0.023. Use this density curve to find the probabilities of the following events.
Find the probability that a random sample of 4 male Siberian tigers will have a sample mean weight more than 450 lb.
a seven-year medical research study reported that women whose mothers took the drug diethylstilbestrol des during
The data obtained are shown in the Excel worksheet Problem 4 and below. You are to test to determine if the type of ticket and the type of flight are independent or not. Use alpha = .05
Describe the basic characteristics of a normal distribution and the normal curve. What are z scores and how are they used in relation to distributions and raw scores?
A company has two different processes that make credit cards. Suspecting that machine B has a higher variability than machine A the manager orders a test to be run. The following data was collected:
Standard deviations for first- and second-time and confidence interval
An economist found that a random sample of 42 high school teachers had an average annual salary of $56,490. A previous study showed that the population standard deviation is $4150. Find the 99% confidence interval for µ, the average annual salary ..
What is the probability that you get a seat that would fail the stress test if failing is a score of 6.2 or less and estimate of those population parameters
Suppose event A has a 0.99 probability of occurring and event B has a 0.98 probability of occurring.
Election-day polls are taken from voting precincts selected because they are believed to be representative of all voters.
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