Total number of bulbs = 64
Number of defective bulbs = 10
Number of good bulbs = 64 - 10 = 54
P(5 good bulbs) = (54/64)⁵ = (27/32)⁵ = 0.428
Answer: 0.428
Answer: 9 132
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250
9.524 = 9 + 0.524 = 9 + 524 = 9 524 = 9 524:2 = 9 262 = 9 134
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1000 1000 1000:2 500 250
[deleted due to wrong answer]