Observe the following graph: What is the exact value of cos0

Mathematics

1 answer:

ANEK [815]2 years ago

7 0

Answer:

(Sqrt)2/2

Step-by-step explanation:

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How do you work out a percentile rank of a score of 57

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To do that you'll need the mean and standard deviation of all the scores. Can you provide this info?

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It is z = ------------ , or z = 5/3, or z = 1.67.
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Find the area to the left of z = 1.67. Multiply that area by 100% to find the percentile rank of the score 57.

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