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marysya [2.9K]
3 years ago
10

What does the x=?...

Mathematics
1 answer:
meriva3 years ago
3 0

Answer:

Step-by-step explanation: x=1

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x = 4

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High school students across the nation compete in a financial capability challenge each year by taking a National Financial Capa
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Answer:

The students have to score 0.74 standard deviations above the mean to be publicly recognized.

Step-by-step explanation:

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If X \sim N (\mu, \sigma^{2}), then z=\frac{X-\mu}{\sigma}, is a standard normal variate with mean, E (<em>Z</em>) = 0 and Var (<em>Z</em>) = 1. That is, Z \sim N (0, 1).

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It is provided that the students who score in the top 23% are recognized publicly for their achievement by the Department of the Treasury.

That is, P (X > x) = 0.23.

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   P(Z>z)=0.23\\1-P(Z

The value of <em>z</em> for this probability value is:

<em>z</em> = 0.74.

*Use a <em>z</em>-table.

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Answer:

I hope it helped u.

Step-by-step explanation:

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