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Out of 840 discs tested, 38 are defective. Estimate the number of defective discs in a batch of 43,000. about 3,890 discs about 195 discs about 1,945 discs about 19,450 discs
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Out of 840 discs tested, 38 are defective. Estimate the number of defective discs in a batch of 43,000.

about 3,890 discs

about 195 discs

about 1,945 discs

about 19,450 discs

User Vadimtrifonov
by
8.5k points

1 Answer

2 votes
by proportion 38 / 840 = x / 43000

x = 38*43,000 / 840 = 1,945 answer
User Reza Ameri
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8.1k points
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