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Question: A needle is tossed at random on a grid of equally spaced parallel lines. Assume the needle is so much longer than the spacing between the lines that the possibility of the needle not crossing any line can be neglected. Let X be the distance between the center of the needle and the closest point at which the needle crosses one of the lines. Find:
a) The distribution function of X:
b) The density function of X.
(a) What is P[X > 1/2]? (b) What is P[-1/2
The following data give the prices of seven textbooks randomly selected from a university bookstore.
They became ________ likely to underperform on aptitude tests and ________ likely to become aggressive toward someone who had insulted them.
If the sides of the square are lengthened by 5cm, the area becomes 144cm^2. Find the length of a side of the original square.
A random sample of 900 workers in a particular city found 342 workers who had full health insurance coverage. Find a 95% confidence interval for the true percent of workers in this city who have full health insurance coverage.
mean grade point average. as part of a study of grade inflation you want to estimate the mean gpa of all current
Study on Comparison of LSAT and SAT Verbal
"Researcher wanted to know whether there is an association between use of certain drug (Reserpine) and breast cancer. Their target population was 2 million.
Let X[n] be a wide sense stationary, discrete random process with autocorrelation function and let C be a constant- Find the autocorrelation function for the discrete random process .
Chief among those changes has been a perceived deterioration of world stability, not only in terms of economics but also in terms of security. What indicators could lead one to conclude that in the years following the collapse of the Communist wor..
At a board meeting of 20 businessmen, all of whom wear ties, what is the probability that:
An automobile club comes to the aid of stranded motorists who are members. Over the long run, about 5% of the members utilize this service in any 12-month.
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