3 years ago

SOMEBODY PLS HELP!! (view picture) (math related) pls i need help u can get brainlest

Mathematics

1 answer:

Igoryamba3 years ago

5 0

The ax’s are 0 and 3 the Y’s are -1 and 3

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82.62

Step-by-step explanation:

Mean score (μ) = 80

Standard deviation (σ) = 5

The 70th percentile of a normal distribution has an equivalent z-score of roughly 0.525.

For any given score, X, the z-score can be determined by:

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A raw score of approximately 82.62 corresponds to the 70th percentile.

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