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ivanzaharov [21]
3 years ago
5

Which way do i turn it and wut are my points? will give brainliest

Mathematics
1 answer:
alexgriva [62]3 years ago
8 0

Answer:

Um...what is it that you want to create? What is the question? (please give me brainliest i need it so bad)

Step-by-step explanation:

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I you were flipping a nickel a dime and a quarter how many possible outcomes are possible for getting heads or tails
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3/6 possible out comes for heads and tails
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The number of text messsages that teenagers send per month is normally
ki77a [65]

Answer:

z=\frac{4415-3400}{450}=2.26

And the explanation of this number is:"The number of text messages for Kendra it's 2.26 deviations above the mean"

Step-by-step explanation:

1) 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".  

2) Calculate the z score

Let X the random variable that represent the number of text messages per month, and for this case we know the distribution for X is given by:

X \sim N(3400,450)  

Where \mu=3400 and \sigma=450

And the best way to solve this problem is using the normal standard distribution and the z score given by:

z=\frac{x-\mu}{\sigma}

If we apply this formula to our probability we got this:

z=\frac{4415-3400}{450}=2.26

And the explanation of this number is:"The number of text messages for Kendra it's 2.26 deviations above the mean"

6 0
3 years ago
Wharton how many times have you taken the gmat
zhannawk [14.2K]
Who is Wharton. I don’t get it is it a convo
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You purchase a television anda blu-ray palter together for $1,759. The blue-ray player, by itself, cost $469. How much did the t
satela [25.4K]
Both together cost $1759.
That means that sum of the two prices is $1759.
The operation that is the opposite of addition is subtraction.
We subtract $469 from $1759 to find the price of the televition.

$1759 - $469 =

     1759
  -    469
-----------
     1290

$1759 - $469 = $1290

Answer: The price of the television is $1290.


7 0
3 years ago
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3 years ago
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