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nalin [4]
3 years ago
15

HELP! Does the data in the table show a proportional relationship?

Mathematics
2 answers:
Ugo [173]3 years ago
5 0
No I’m pretty sure is the answer
9966 [12]3 years ago
3 0

Answer:

No, is the answer. :)

Step-by-step explanation:

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The expected (mean) life of a particular type of light bulb is 1,000 hours with a standard deviation of 50 hours. The life of th
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Answer:

Option B) 0.0013

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 1000 hours

Standard Deviation, σ = 50 hours

We are given that the distribution of life of bulb is a bell shaped distribution that is a normal distribution.

Formula:

z_{score} = \displaystyle\frac{x-\mu}{\sigma}

P(bulb would last longer than 1150 hours)

P( x > 1150) = P( z > \displaystyle\frac{1150 - 1000}{50}) = P(z > 3)

= 1 - P(z \leq 3)

Calculation the value from standard normal z table, we have,  

P(x > 1150) = 1 - 0.9987 = 0.0013

0.0013 is the probability  that a randomly selected bulb would last longer than 1150 hours.

Thus, the correct answer is

Option B) 0.0013

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3 years ago
What is 65/200 simplified
KonstantinChe [14]
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Step-by-step explanation:

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Miguel has ordered 100 dinner plates. Each plate is 12 inches in diameter, with gold trim along the edge. What is the total inch
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