Mathematics, 27.05.2021 21:00 KATE1223
Ralphie is taking a ten-question multiple choice test. Each question has five choices. If Ralphie answers a question
correctly, he earns one point; if he answers incorrectly, he loses half a point. Ralphie answers the first six questions
correctly, then guesses on the last four. What is the expected value of his test score? Round the answer to the nearest
whole percent.
A 52%
B. 60%
C. 68%
D. 80%
Answers: 3
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Which of the following expressions are equivalent ?
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Mathematics, 21.06.2019 15:50, tmarie03
Which formula finds the probability that a point on the grid below will be in the blue area? p(blue) = total number of squares number of blue squares number of blue squares p(blue) = total number of squares number of blue squares p(blue) = number of white squares
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Aman is 6 feet 3 inches tall. the top of his shadow touches a fire hydrant that is 13 feet 6 inches away. what is the angle of elevation from the base of the fire hydrant to the top of the man's head?
Answers: 1
Ralphie is taking a ten-question multiple choice test. Each question has five choices. If Ralphie an...
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