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Ira Lisetskai [31]
3 years ago
10

Solve for n n-5= 8 please helpppppp thanks

Mathematics
2 answers:
Firlakuza [10]3 years ago
8 0

Answer:

13

Step-by-step explanation:

yarga [219]3 years ago
4 0

n-5 = 8

<em>Add 5 to both sides</em>

n - 5 + 5 = 8 + 5

<em>Simplify</em>

n = 13

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Suppose that the mean score on a creativity test is 16 and the standard deviation is 4. You are told that the distribution is no
Savatey [412]

Answer:

P(12

And we can find this probability on this way:

P(-1

We expect around 68.27% between the two scores provided.

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 scores of a population, and for this case we know the distribution for X is given by:

X \sim N(16,4)  

Where \mu=16 and \sigma=4

We are interested on this probability

P(12

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:

P(12

And we can find this probability on this way:

P(-1

We expect around 68.27% between the two scores provided.

5 0
3 years ago
Find the slope and the y-intercept of the graph of y=11+1.5x.
Anni [7]
Honestly man i don’t know Im in 6th grade bro
6 0
2 years ago
Read 2 more answers
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