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2 years ago

Round each number to the nearest 10 and 100. 734,102,483

Mathematics

1 answer:

11111nata11111 [884]2 years ago

8 0

734: 730 and 700.

102: 100 and 100.

483: 480 and 500.

There you go! ^w^

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The mean time it takes for workers at a factory to insert a delicate bolt into an engine is 15 minutes. The standard deviation o

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Answer:

required probability is 0.8413

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$z=\frac{X-\mu }{\sigma }\\=\frac{19-15}{4}\\=1$

So,

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3 years ago

The level of nitrogen oxides (NOX) in the exhaust after 50,000 miles or fewer of driving of cars of a particular model varies No

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Answer:

For a level of 0.0174 or more of nitrogen oxide, the probability of fleet is 0.01.

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 0.02 g/mi

Standard Deviation, σ = 0.01 g/mi

Sample size, n = 81

We are given that the distribution of level of nitrogen oxides is a bell shaped distribution that is a normal distribution.

Standard error due to sampling:

$=\dfrac{\sigma}{\sqrt{n}} = \dfrac{0.01}{\sqrt{81}} = 0.0011$

Formula:

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

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$= 1 -P( z \leq \displaystyle\frac{x - 0.02}{0.0011})=0.01$

$=P( z \leq \displaystyle\frac{x - 0.02}{0.0011})=0.99$

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$\displaystyle\frac{x - 0.02}{0.0011} = -2.326\\\\x = 0.0174$

For a level of 0.0174 or more of nitrogen oxide, the probability of fleet is 0.01.

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2 years ago

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Step-by-step explanation:

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Answer: Please mark me brainliest, it will really help me just as this answer really helps you.

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I observed a pattern that each next number was divided by two.

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