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Two airplanes are flying in the same direction in adjacent parallel corridors.At time t=0,the first airplane is 10 km ahead of the second one.Suppose the speed of the first plane (km/hr)is normally distributed with mean 520 and standard deviation 10 and the second plane's speed is also normally distributed with mean and standard deviation 500and 10,respectively.
what is the probability that plane 2 did not catch up to plane one after two hours of flight?
What is the probability of at least three hacker attempts during a month? What is the probability of a hacker attempt occurring every 15 days or less (assume a 30 day month).
The mean and variance of the total amount of money that is collected from a car that crosses the bridge are:
A sample of 46 bars is taken and their mean length is determined to be 51 centimeters with a standard deviation of 3.6 centimeters. Using a .01 significance level, test the retailers claim that the population mean is less than 50 centimeters.
What is the expected number of Republicans who will win office in the coming election?
Express the null hypothesis and the alternative hypothesis in symbolic form: An entomologist writes an article in a scientific journal, which claims that fewer than 7 in ten thousand male fireflies are unable to produce light due to a genetic muta..
One approach would be to contact every psychology graduate student you know and ask them to fill out a questionnaire about it.
Interpret the interaction graph in terms of what it shows about the three effects tested.
Chi-square tests are great to show if distributions differ or if two variables interact in producing outcomes. What are some examples of variables that you might want to check using the chi-square tests? What would these results tell you?
A new product has the following profit projections, associated probabilities, and indifference probability:
A population has mean 325 and variance 144. Suppose the distribution of sample means is generated by random samples of size 36.
What is meant by the probability of an event? Discuss how addition and multiplication techniques are used to solve probability problems.
Probability based on binomial distribution - evaluate the probability of x successes in the n independent trials of the experiment.
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