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Question: If a student knows 75% of the material in a course, and a 100 question multiple choice test with five choices per question covers the material in a balanced way, what is the student's probability of getting a right answer to a given question, given that the student guesses at the answer to each question whose answer he or she does not know?
In a game of skill, the contestant chooses the value of α and wins a prize if the ball strikes the peg. Show that the winning value of α is approximately 86°.
The following data pertain to x, the amount of fertilizer (in pounds) that a farmer applies to his soil, and y, his yield of wheat (in bushels per acre):
In terms of the standard scores for both sections, the score of which section was better? What are the z-scores for both sections?
Make a histogram showing the probabilties of r = 0, 1, 2, 3, 4, 5, 6, 7 or 8 defective syringes in a random sample of 8 syringes.
What is the probability that 10 or more were male? What is the probability that 10 or more were female? What is the probability that fewer than 7 were female?
The company provide to ensure that an attempted call is blocked (because all circuits are busy) with probability less than 0.01? It is assumed that blocked calls are lost.
What was the Hellenistic age and how did it come to be? What are some special characteristics of Hellenistic cities, art, culture, thought, and achievements? What were some of the major contributions of the Hellenistic age that outlasted the Helle..
A box contains three marbles - one red, one green, and one blue. Consider an experiment that consists of taking one marble from the box, then replacing it in the box and drawing a second marble from the box.
Does this data support the researchers' hypothesis? Test the relevant hypotheses using α = .10 by first calculating a P-value.
table presents the thickness of a metal layer on 100 silicon wafers resulting from a chemical vapor deposition cvd
An unprepared student takes a 5-question true and false quiz and guesses every answer. Find the probability that the student will pass the quiz if at least 4 correct answers is the passing grade
suppose 1657 of 2006 registered voters sampled said they planned to vote for the republican candidate for president.
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