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a factory makes car batteries. The probability that a battery is defective is 1/13. If 200 batteries are tested about how many are expected t be defective.
A. 20
B. 15
C. 187
D. 13

Sagot :

Answer:

defective battery=200×1/13=15.3=15 is your answer

Number of expected defective batteries are option(B) 15

What is Probability?

Probability is the branch of mathematics concerning numerical descriptions of how likely an event is to occur, or how likely it is that a proposition is true.

Given,

Probability that a battery is defective = [tex]\frac{1}{13}[/tex]

Total number of batteries = 200 batteries

Number of expected defective batteries = [tex]200(\frac{1}{13})[/tex] ≅15 batteries

Hence, the number of expected defective batteries are option (B) 15 batteries

Learn more about Probability here

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