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irga5000 [103]
3 years ago
13

In a batch of 960 calculators, 8 were found to be defective. What is a probability that a calculator chosen at random will be de

fective? Write the probability as a percent. Round to the nearest tenth of a percent if necessary.
Mathematics
2 answers:
DaniilM [7]3 years ago
8 0
Out of 960 calculators, 8 were found be to defective

Probability:
                 \frac{8}{960}
                 0.00833...
As a Percent:
                 0.00833....× 100
                 0.833%
To the nearest tenth of percentage:
                 0.833% ≈ 0.8%
salantis [7]3 years ago
5 0

Answer:

0.8%  is a probability that a calculator chosen at random will be defective

Step-by-step explanation:

Probability of any event is given by:

P(A) = \frac{\text{Number of required outcomes}}{\text{Total number of possible outcomes}} where, A is any event.

As per the statement:

In a batch of 960 calculators, 8 were found to be defective.

here,

A = Defective calculator.

⇒Number of defective calculator = 8

and

Total number of outcomes = 960 calculators.

then by definition we have;

P(A) = \frac{8}{960}

Simplify:

P(A) \approx 0.00833333333 = 0.833333333 %

Therefore, a probability that a calculator chosen at random will be defective to the nearest tenth place is, 0.8 %

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