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Mariulka [41]
3 years ago
14

66/9-7*532 Am I cute and I do feel really insecure about myself toooo....

Mathematics
1 answer:
miv72 [106K]3 years ago
3 0

Answer:

− 11150 /3​

Step-by-step explanation:

You are beautiful!

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Need help with a math probelm gvie 5 star if do
arsen [322]

Answer:

28 units^{3}

Step-by-step explanation:

21/2 * 8/3 = 28

3 0
2 years ago
A sample of size 6 will be drawn from a normal population with mean 61 and standard deviation 14. Use the TI-84 Plus calculator.
AVprozaik [17]

Answer:

X \sim N(61,14)  

Where \mu=61 and \sigma=14

Since the distribution for X is normal then the distribution for the sample mean  is also normal and given by:

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

\mu_{\bar X} = 61

\sigma_{\bar X}= \frac{14}{\sqrt{6}}= 5.715

So then is appropiate use the normal distribution to find the probabilities for \bar X

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".  The letter \phi(b) is used to denote the cumulative area for a b quantile on the normal standard distribution, or in other words: \phi(b)=P(z

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(61,14)  

Where \mu=61 and \sigma=14

Since the distribution for X is normal then the distribution for the sample mean \bar X is also normal and given by:

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

\mu_{\bar X} = 61

\sigma_{\bar X}= \frac{14}{\sqrt{6}}= 5.715

So then is appropiate use the normal distribution to find the probabilities for \bar X

8 0
3 years ago
Simplify. –2 • (4) – 3 • (–5) = A. 55 B. 7 C. –23 D. –120
stepan [7]
Your answer to the question is B) 7
3 0
3 years ago
Mr. Parks begins to fill a large container with water for the dunk tank at the school
Gennadij [26K]

Answer:

im a a monkey

Step-by-step explanation:

3 0
2 years ago
Read 2 more answers
Find the values for a and b that would make the equality true.
zepelin [54]

Answer:

a = - 4, b = 5

Step-by-step explanation:

Expand the left side, then compare the coefficients of like terms.

- 3(2x² + ax + b)

= - 6x² - 3ax - 3b, compare to - 6x² + 12x - 15

Compare coefficients of x- terms

- 3a = 12 ( divide both sides by - 3 )

a = - 4

Compare constant terms

- 3b = - 15 ( divide both sides by - 3 )

b = 5

8 0
3 years ago
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