Find the expected value.A new light bulb has been found to have a 0.02 probability of being defective. A shop owner receives 500 bulbs of this kind. How many of these bulbs are expected to be defective?
A. 20
B. 100
C. 10
D. 500
Answer: C
Mathematics
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A. 2x - 4 B. x - 2 C. 3x - 5 D. 3x - 15
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Use the at least once rule to find the indicated probability.Find the probability of at least one 3 in 7 rolls of a fair die.
A. 0.721 B. 0.992 C. 0.279 D. 0.056
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Solve the equation.
= 2.18
A. {918} B. {0, 918} C. {-482, 918} D. {482, 918}
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Write true or false for the statement.The sum of the measures of the angles in a triangle is 90°.
A. True B. False
Mathematics