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mars1129 [50]
3 years ago
14

Use technology or a z-score table to answer the question.

Mathematics
1 answer:
Drupady [299]3 years ago
8 0

Answer:

C

Step-by-step explanation:

Finding the z-score:

z = (x - μ) / σ

z = (66 - 57) / 9

z = 1

Using a z-score table or calculator:

P(z < 1) = 0.8413

84.13% of 4000 is:

0.8413 (4000) = 3365.2

Rounding up to the nearest whole number, approximately 3366 students will score less than 66.  Answer C.

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