4 years ago

Please help with both of these! Thank you!

1 answer:

8 0

A) not linear because it us nRaqqat in slope intercept form or standard form
b)not linear because the rate if change is not constant

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Marysya12 [62]

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Olegator [25]

Answer: 30.85%.

Step-by-step explanation:

Let X denotes the score of random student.

Given: $\mu = 50$ and $\sigma=10$

We assume that scores are normally distributed.

Then , the probability that a a student score higher than 55:

$P(X>55)=P(\dfrac{X-\mu}{\sigma}>\dfrac{55-50}{10})\\\\=P(Z>0.5) \ \ [Z=\dfrac{X-\mu}{\sigma}]\\\\=1-P(Z$

Hence, the percent of students have a higher score than hers is 30.85%.

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balu736 [363]

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Nag basa nito walang jõwa

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