3 years ago

Haaaaallllllppppppp my brains fried atm

Mathematics

1 answer:

rewona [7]3 years ago

3 0

I’m pretty sure it’s 9, I haven’t done this in awhile though...

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Who was the proprietor of the colony of Pennsylvania?

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Round 6,789 to the nearest Thousand

svlad2 [7]

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Step-by-step explanation:

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3 years ago

In a sample of 100 steel canisters, the mean wall thickness was 8.1 mm with a standard deviation of 0.5 mm. Someone says that th

Travka [436]

Answer:

This statement can be made with a level of confidence of 97.72%.

Step-by-step explanation:

We are given the following information in the question:

Mean, μ = 8.1 mm

Standard Deviation, σ = 0.5 mm

Sample size, n = 100

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

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

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$=\dfrac{\sigma}{\sqrt{n}} = \dfrac{0.5}{\sqrt{100}} = 0.05$

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P(x < 8.2)

$P( x < 8.2)\\\\ = P( z < \displaystyle\frac{8.2 - 8.1}{0.05})\\\\ = P(z < 2)$

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This statement can be made with a level of confidence of 97.72%.

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Please answer this correctly

Ray Of Light [21]

Answer:

d = 2

the diagonals are the different lengths

Step-by-step explanation:

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Is the number of statistic students now reading a book a discrete random variable, a continuous random variable, or not a random

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A discrete random value

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