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morpeh [17]
3 years ago
10

PLS HELP PUT #BRAINLIEST IF YOU WANT IT

Mathematics
2 answers:
laiz [17]3 years ago
8 0
The answer to this question is 1.5
oksano4ka [1.4K]3 years ago
4 0
1.5 is the correct answer :)
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A person must get an IQ score of at least 138.885 to qualify.

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Problems of normally distributed samples are solved using the z-score formula.

In a set with mean \mu and standard deviation \sigma, the zscore of a measure X is given by:

Z = \frac{X - \mu}{\sigma}

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Top 8%, so at least the 100-8 = 92th percentile.

Scores of X and higher, in which X is found when Z has a pvalue of 0.92. So X when Z = 1.405.

Z = \frac{X - \mu}{\sigma}

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