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2 years ago

6 x 2 7 x 2 8 x 2 3 x 3

Mathematics

1 answer:

Semenov [28]2 years ago

6 0

$6 \times 27 \times 28 \times 23 \times 3 = 312984$

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Which of the following rational numbers is equal to 2 point 4 with bar over 4? twenty two over nine twenty four over nine twenty

qaws [65]

Answer:

Twenty two over nine.

Step-by-step explanation:

The bar over the 4 means that 4 is recurring .44444......... It goes on with out bounds and is equal to 4/9.

So 2.4 = 2 4/9

= 22/9.

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3 years ago

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Figure EFGH on the grid below represents a trapezoidal plate at its starting position on a rotating platform:

Murrr4er [49]

Answer: A is correct

Step-by-step explanation: I took the test and I got 100

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3 years ago

Can somebody please help

NISA [10]

Answer:

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Step-by-step explanation:

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2 years ago

A crop scientist is conducting research with a drought resistant corn hybrid. She is interested in determining if increasing the

sdas [7]

Answer:

A , B and E.

Step-by-step explanation:

the scientist can control and deal with the measure of manure that is given to a solitary corn plants. thus A is correct.

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it's considered an experiment because the specialist is controlling the autonomous variable. then E is a right choice.

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3 years ago

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According to a study conducted in one city, 25% of adults in the city have credit card debts of more than $2000. A simple ran

Anvisha [2.4K]

Answer:

The sampling distribution of $\hat p$ is N (0.25, 0.0354²).

Step-by-step explanation:

According to the Central limit theorem, if from an unknown population large samples of sizes n > 30, are selected and the sample proportion for each sample is computed then the sampling distribution of sample proportion follows a Normal distribution.

The mean of this sampling distribution of sample proportion is:

$\mu_{\hat p}=p$

The standard deviation of this sampling distribution of sample proportion is:

$\sigma_{\hat p}=\sqrt{\frac{p(1-p)}{n}}$

Let p = proportion of adults in the city having credit card debts of more than $2000.

It is provided that the proportion of adults in the city having credit card debts of more than $2000 is, p = 0.25.

A random sample of size n = 150 is selected from the city.

Since n = 150 > 30 the Central limit theorem can be used to approximate the distribution of p by the Normal distribution.

The mean is:

$\mu_{\hat p}=p=0.25$

The standard deviation is:

$\sigma_{\hat p}=\sqrt{\frac{p(1-p)}{n}}=\sqrt{\frac{0.25(1-0.25)}{150}}=0.0354$

Thus, the sampling distribution of $\hat p$ is N (0.25, 0.0354²).

3 0

3 years ago