Statisticseasy · Past Paper
A box contains 10 light bulbs, 3 of which are defective. What is the probability of picking a good bulb?
A3/10
B7/10
C1
D0.3
✓ Correct Answer: B — 7/10
Number of good bulbs = 10 - 3 = 7. Probability = 7/10.
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