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Aleonysh [2.5K]
3 years ago
8

I need help!!!! failed test and so confused

Mathematics
1 answer:
AlexFokin [52]3 years ago
4 0
Ok what’s the question???
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If a normal random variable has a mean = _____ and a standard deviation = _____, it is called a standard normal distribution.gro
Valentin [98]

If a normal random variable has mean of 0 and standard deviation of 1, it is called a standard normal distribution.

<h3>Normal Probability Distribution</h3>

The z-score of a measure X of a normally distributed variable with mean \mu and standard deviation \sigma is given by:

Z = \frac{X - \mu}{\sigma}

  • The z-score measures how many standard deviations the measure is above or below the mean.
  • Looking at the z-score table, the p-value associated with this z-score is found, which is the percentile of X.

For the standard normal distribution, the mean and the standard deviation are given, respectively, by:

\mu = 0, \sigma = 1

More can be learned about the normal distribution at brainly.com/question/24537145

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7 0
1 year ago
Find (-8x+2)-(-5x+7)
dezoksy [38]

Answer: -3x-5

Step-by-step explanation:

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3 years ago
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Two cylinders have the same size base, but one is twice as tall. Explain why the taller cylinder does not have double the surfac
love history [14]

Answer:

Because surface area has nothing to do with how tall it is

Step-by-step explanation:

Surface area involves the base shape of the object, if both cylinders have a base of the same size and shape, then the surface area of the face of that object will remain the same. how tall the cylinder is would affect volume however.

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3 years ago
What is the answer to 2+4×7
PIT_PIT [208]
2+4×7=
=2+28=30
Answer: 30
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4 years ago
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Help please!!!!!!!!!!!!!!!!!!!!!!!!
kondor19780726 [428]
I think its B not sure tho sorry
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