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In a batch of 1130 calculators, 10 were found to be defective. A calculator is chosen at random. What is the chance that it is a defective calculator? Round your answer to the nearest 0.1%, if necessary.
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In a batch of 1130 calculators, 10 were found to be defective. A calculator is chosen at random. What is the chance that it is a defective calculator? Round your answer to the nearest 0.1%, if necessary.

User Robert Wade
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Out of 1130 calculators, 10 are defective; therefore, the empirical probability of choosing a defective calculator is


P(defective)=(10)/(1130)=(1)/(113)=0.00884...\approx0.9\%

Thus, the rounded answer is 0.9%

User Simsom
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