Question

Out of 200 bulbs in a box, 12 bulbs are defective. One bulb is taken out at random from the box. What is proballity that the drawn bulb is not deffective?

Answer 1

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Answer 2

bulbs are 200.

defective are 12.

188 bulbs are affective.

p( effective bulb) = 188/200

= 47/50

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