Block resting on a frictionless horizontal ledge
A 4 kg block resting on a frictionless horizontal ledge is joined to a string which passes over a pulley and is joined to a hanging 2 kg block. The pulley is a uniform disk of radius 10.0 cm and having mass 0.70 kg.
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The heights of students is distributed with mean of 70 inches and standard deviation of 2.8in. 25 students are chosen, find out the probability that the height of them will average above 72.
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Thirty students recorded colors of their eyes, selecting from colors brown, blue, green, hazel, and black. This data can be appropriately summarized in
In 1995, populatoion of the country was evaluated at 4 million. For any subsequent year population P(t)= 240/5+54.99e-0.0208t where t is number of years since 1995. Evaluate population in 2008.
Compute the probability of event A, P(A). Calculate the conditional probability of event A given B, P(A|B). Write your answer as a fraction. Are A and B independent events?
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