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ivanzaharov [21]
3 years ago
14

Sachiko goes for lunch at 12:00. She has 30 minutes. What time does her lunch period end?​

Mathematics
1 answer:
evablogger [386]3 years ago
3 0

Answer:

<h2>12:30 PM</h2>

Step-by-step explanation:

12:00 + :30 (30 minutes) =

12:30

<em>Hope that helps! :)</em>

<em></em>

<em>-Aphrodite</em>

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5 pounds.

Step-by-step explanation:

2 1/2 = 2.5

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6 0
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Imagine the graph for the relation 4x-5y+20 = 0.<br> What would be its slope?
muminat
4x - 5y + 20 = 0
<u>             - 20  - 20</u>
        4x - 5y = -20
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3 years ago
2. Suppose over several years of offering AP Statistics, a high school finds that final exam scores are normally distributed wit
nirvana33 [79]

Answer:

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Step-by-step explanation:

Central Limit Theorem

The Central Limit Theorem establishes that, for a normally distributed random variable X, with mean \mu and standard deviation \sigma, the sampling distribution of the sample means with size n can be approximated to a normal distribution with mean \mu and standard deviation s = \frac{\sigma}{\sqrt{n}}.

For a skewed variable, the Central Limit Theorem can also be applied, as long as n is at least 30.

Mean of 78 and a standard deviation of 6

This means that \mu = 78, \sigma = 6

Samples of n:

This means that the standard deviation is:

s = \frac{\sigma}{\sqrt{n}} = \frac{6}{\sqrt{n}}

What are the mean, standard deviation, and shape of the distribution of x-bar for n?

By the Central Limit Theorem, the mean is 78, the standard deviation is s = \frac{6}{\sqrt{n}} and the shape is approximately normal.

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Step-by-step explanation:

that is the solution above

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I don’t need the work just help
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Step-by-step explanation:

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