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eimsori [14]
3 years ago
10

I think its a because of the way it looks

Mathematics
2 answers:
8090 [49]3 years ago
7 0

Answer:

f r e e points?

Step-by-step explanation:

cluponka [151]3 years ago
3 0
Thanks a lot gjghhbbb
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SAT scores are normally distributed, with a mean of 500 points and a
babymother [125]

Recalling that SAT scores are always expressed as multiples of 10, then the points we get on the test will be 628.

<h3>What do you mean by standard deviation?</h3>

In statistics, Standard deviation is a measure of the variation of a set of values.

σ = standard deviation of population

N = number of observation of population

X = mean

μ = population mean

WE have been given that SAT scores are normally distributed, with a mean of 500 points and a standard deviation of 100 points.

The solution as follows;

Let be X: scores of SAT

P(X ≥ x) = 0.9

P((X - 500)/100 ≥ (x - 500)/100) = 0.9

P(Z ≥ z) = 0.9

z = 1.28

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Recalling that SAT scores are always expressed as multiples of 10, then the points we get on the test will be 628.

Learn more about standard deviation and variance:

brainly.com/question/11448982

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