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Dvinal [7]
3 years ago
7

The ACT is an exam used by colleges and universities to evaluate undergraduate applicants. The test scores are normally distribu

ted. In a recent year, the mean test score was 21.1 and the standard deviation was 5.0. Find the z-score for the student who scores a 15.
Mathematics
1 answer:
Aleonysh [2.5K]3 years ago
8 0

Answer:

- 0.40666

Step-by-step explanation:

Given that:

Mean, m = 21.1

Standard deviation, s = 5.0

Score, x = 15

Zscore formula :

Zscore = (x - m) / s

Zscore = (15 - 21.1) / 15

Zscore = - 6.1 / 15

Zscore = - 0.40666

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If 40% of a number is 80 what is 25% of that number?
olga2289 [7]

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3 years ago
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Which function is undefined for x = 0? y=3√x-2 y=√x-2 y=3√x+2 y=√x=2
Andre45 [30]

For this case, we must indicate which of the given functions is not defined forx = 0

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Option b


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