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gregori [183]
3 years ago
12

A manufacturer of computer disks has a historical defective rate of .001. what is the probability that in a batch oof 1000 disks

, 2 would be defective?
Mathematics
2 answers:
kkurt [141]3 years ago
7 0

p(2 defective) = 1000C2*(.001²)*(.999⁹⁹⁸)

.. ≈ 499,500*10⁻⁶*0.368432

.. ≈ 0.18403


About 18.4%.

Aleonysh [2.5K]3 years ago
6 0
P(2 defective) = 1000C2*(.001²)*(.999⁹⁹⁸)
.. ≈ 499,500*10⁻⁶*0.368432
.. ≈ 0.18403

About 18.4%.
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The statement that correctly describes the product, 5.15 x 6√7, which is 81.7537155..., is <u>A. </u><u>irrational</u>.

<h3>What is an irrational product?</h3>

An irrational number is one that can be written as a decimal, but not as a fraction.

An irrational number has endless non-repeating digits to the right of the decimal point.

The rules for determining if a product is rational or irrational are as follows:

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<h3>Data and Calculations:</h3>

5.15 x 6√7

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Thus, the product of 5.15 x 6√7 is irrational because √7 is irrational.

Learn more about rational and irrational numbers at brainly.com/question/20400557

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<h3>Complete Question with Answer Options:</h3>

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<u><em>b).</em></u>

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