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3 years ago

14

Cindy put equal sized marbles into a bowl. Then, she shook the bowl until 3 marbles fell out. Is this a random sample of the mar

bles? YESS OR NOO?
ANSWER FAST!!

2 answers:

myrzilka [38]3 years ago

6 0

Answer:

Yes

Step-by-step explanation:

I'm assuming this is right

Andreyy893 years ago

6 0

No because she shook them in order for them to fall

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Find the indicated probability or percentage for the sampling error. The distribution of weekly salaries at a large company is r

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Answer:

The probability that the sampling error made in estimating the mean weekly salary for all employees of the company by the mean of a random sample of weekly salaries of 80 employees will be at most $75 is 0.9297.

Step-by-step explanation:

According to the Central Limit Theorem if we have a non-normal population with mean <em>μ</em> and standard deviation <em>σ</em> and appropriately huge random samples (<em>n</em> > 30) are selected from the population with replacement, then the distribution of the sample means will be approximately normally distributed.

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And the standard deviation of the distribution of sample means is given by,

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$\mu=\$1000\\\sigma=\$370\\n=80$

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3 years ago

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= M(2·(8 - t))

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Answer:

see the explanation

Step-by-step explanation:

we know that

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