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3 years ago

The first three terms of a geometric sequence are as follows.

Mathematics

1 answer:

solmaris [256]3 years ago

4 0

Answer:

-250, 1250

Step-by-step explanation:

The pattern is to multiply by -5.

2,-10, 50, -250, 1250

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Suppose a simple random sample of size n is drawn from a large population with mean mu and standard deviation sigma. The samplin

Sidana [21]

Answer:

$X \sim N(\mu,\sigma)$

Where $\mu$ the mean and $\sigma$ the deviation

Since the distribution for X is normal then we can conclude that the distribution for the sample mean $\bar X$ is given by:

$\bar X \sim N(\mu, \frac{\sigma}{\sqrt{n}})$

$\mu_{\bar X} = \mu$

$\sigma_{\bar X}= \frac{\sigma}{\sqrt{n}}$

Step-by-step explanation:

Previous concepts

Normal distribution, is a "probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence than data far from the mean".

The Z-score is "a numerical measurement used in statistics of a value's relationship to the mean (average) of a group of values, measured in terms of standard deviations from the mean".

Solution to the problem

Let X the random variable that represent the variable of interest of a population, and for this case we know the distribution for X is given by:

$X \sim N(\mu,\sigma)$

Where $\mu$ the mean and $\sigma$ the deviation

Since the distribution for X is normal then we can conclude that the distribution for the sample mean $\bar X$ is given by:

$\bar X \sim N(\mu, \frac{\sigma}{\sqrt{n}})$

$\mu_{\bar X} = \mu$

$\sigma_{\bar X}= \frac{\sigma}{\sqrt{n}}$

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3 years ago

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Brianna, who weighs 6 lb, just received her shots and needs a pain killer. The pain killer is

Drupady [299]

The doctor will prescribe her about 90mg

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3 years ago

The area of a square in 169 square centimeter. What's its perimeter? Pls explain how you found the answer

Lubov Fominskaja [6]

Answer:

Since the area of the square is 169 you think what times what equals 169 which is 13, so 13*13=169,

which makes your length and width 13 so 13*4= 52centimeters

52 centimeters

Step-by-step explanation:

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4 years ago

A stadium has seating accommodation for 3800 people. At a cricket match all seats were taken. If there were 5609 people attendin

umka2103 [35]

Answer:

Step-by-step explanation:

Those standing is the same thing as people who didn't have seats.

Those standing = the total number of people attending - those seated.

Those standing = 5609 - 3800

Those standing = 1809

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3 years ago

25(3 + a) = 0.5 a=__

ANEK [815]

Answer:

CSVDWVDWVD

Step-by-step explanation:

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3 years ago

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