A 25-question multiple-choice placement test offers four possible answers for every question, of which only one is the correct answer. After answering all the questions that she knows, the student guesses on the remaining twenty questions. What is the probability that she gets exactly five of these guessed questions correct?
What will be an ideal response?
0.202331
Mathematics
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Find the mean for the group of data items. Round to the nearest hundredth, if necessary.10, 12, 8, 7, 6, 9, 11, 8
A. 10.14 B. 9 C. 8.88 D. 7.88
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Solve the equation.41 + 2x = 64
A. {-1} B. {4} C. {1} D. {16}
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Use periodic properties of the trigonometric functions to find the exact value of the expression.cos 
A. 
B. - 
C. 
D. - 
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Solve.Graph 
on a number line.
A. 
B. 
C. 
D. 
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