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AveGali [126]
3 years ago
10

A manufacturer knows that 2%2\% 2% 2, percent of its microchips are produced with a certain defect. They decide to change their

process to make it more efficient, and they want to test if the new process has the same defect rate or not.
Mathematics
1 answer:
kirza4 [7]3 years ago
3 0

Answer: 0.0776

Step-by-step explanation:

Since the manufacturer knows that 2% of its microchips are produced with a certain defect. Then

P( defective) = 2/100 = 0.02

P( non defective) = 1 - 0.02 = 0.98

Probability of all 4 not defective will be

P(all 4 not defective) = 0.98^4 = 0.9224

Probability that at least one of the selected chip is defective will be

P(at one defective) = 1 - 0.9224

= 0.0776

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Answer:

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Step-by-step explanation:

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The average age of 4 children is 15 yrs . if the ages of their parents are added , their average age is 25 .find the age of thei
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The age of the father is 57 years old

<h3>Calculating mean of a population</h3>

Total age = Average age x Population

Average of the four children = 15

Population = 4

Total age of the four children = 15 x 4

Total age of the four children = 60 years

If the parents are added:

Population = 6

Average age = 25

Total age = 25 x 6

Total age = 150 years

Total age of the parents = 150 - 60

Total age of the parents = 110 years

The father is 4 years older than his wife

Let the age of the father be x

The age of the wife = x - 4

x + x - 4 = 110

2x = 114

x = 114/2

x = 57

Therefore, the age of the father is 57 years old

Learn more on The mean of numbers here: brainly.com/question/20118982

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2 years ago
Find the exponential equation for the given information. Pls help
nikitadnepr [17]

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y = 12 (2.9)^{x}

Step-by-step explanation:

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Step-by-step explanation:

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