Need math help with a problem about a probability and a light bulb

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One light bulb is selected at random from a lot of 110 light bulbs, of which 2% are defective. What is the probability that the light bulb selected is defective?
A.
B.
C.
D.
Nov 22nd, 2015

Thank you for the opportunity to help you with your question!

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Total number of light bulbs = 110

Number of defective light bulbs = 2% of 110 = 0.02 x 110


Probability that the selected light bulb is defective 

= Number of favorable outcomes / Total number of outcomes

= (0.02 x 110) / 110

= 0.02

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Please let me know if you need any clarification. I'm always happy to answer your questions.
Nov 22nd, 2015

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