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andrezito [222]
3 years ago
11

With one method of a procedure called acceptance sampling, a sample of items is randomly selected without replacement and the en

tire batch is accepted if every item in the sample is okay. The ABC Electronics Company has just manufactured 1950 write-rewrite CDs, and 120 are defective. If 4 of these CDs are randomly selected for testing, what is the probability that the entire batch will be accepted?
Mathematics
1 answer:
zysi [14]3 years ago
4 0

Answer:

0.7755

Step-by-step explanation:

If 120 CDs are defective, the number of non-defective CDs in the batch is:

n=1950-120\\n=1830

In order for the batch to be accepted, all of the 4 CDs in the sample must not be defective, the probability of that happening is:

P=\frac{1830}{1950}*\frac{1829}{1949} *\frac{1828}{1948} *\frac{1827}{1947}\\P=0.7755

The probability that the entire batch will be accepted is 0.7755.

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3 years ago
What are the solutions of the inequality? Graph the solutions. b – 4 > 4 Question 12 options: b > –8 b < –8 b > 8 b
12345 [234]

Hello there! :)

Answer:

\boxed{b>8}\checkmark

<h2><u><em>*****The answer should have a GREATER THAN SIGN AND POSITIVE TOO!*****</em></u></h2>

Step-by-step explanation:

Distributive property: a(b+c)=ab+ac

PEMDAS

Order of operations

Parenthesis

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Left/Right

First, you add by 4 from both sides of an equation.

b-4+4>4+4

Then, you add numbers from left/right.

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\boxed{b>8}, which is our final answer.

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6 0
3 years ago
Multiply and simplify
aleksandr82 [10.1K]

Answer and explanation:

1. 2 × 3/10 = 6/10 = 3/5

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3. 9 × 3/9 = 27/9 = 3

4. 12 × 2/11 = 24/11 = 2 2/11

5. 3 × 5/7 = 15/7 = 2 1/7

6. 2 × 3/5 = 6/5 = 1 1/5

7. 11 × 4/8 = 44/8 = 5 4/8 = 5 1/2

8. 10 × 1/4 = 10/4 = 2 2/4 = 2 1/2

9. 5 × 1/4 = 5/4 = 1 1/4

10. 11 × 2/7 = 22/7 = 3 1/7

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4 0
3 years ago
So what is 1.025 as a percent?
svlad2 [7]

Answer:

1.025%

Step-by-step explanation:

1.025 / 100 = 1.025%

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8 0
3 years ago
Instructions: Find the missing side. Round your answer to the nearest
ch4aika [34]

Answer:

Step-by-step explanation:

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The adjacent side makes up the reference angle (51o)

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x * Tan(51) = 16            Divide by tan 51

x = 16 / tan(51)

tan(51) = 1.2349

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7 0
3 years ago
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