3 years ago

What is the slope-intercept equation of the line that includes (1, 2) and (0,4)?

1 answer:

4 0

The Y intercept is 4, since x = 0 there. Graph both points to find the slope. In the image, I graphed the points and concluded the slope is 2.

The equation is Y = 2x + 4

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0.07 is a smallest fraction?

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Step-by-step explanation:

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3 years ago

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A set of data has a normal distribution with a mean of 5.1 and a standard deviation of 0.9. Find the percent of data between 4.2

Yuliya22 [10]

A set of data has a normal distribution with a mean of 5.1 and a standard deviation of 0.9. Find the percent of data between 4.2 and 5.1.

Answer: The correct option is B) about 34%

Proof:

We have to find $P(4.2$

To find $P(4.2$ , we need to use z score formula:

When x = 4.2, we have:

$z = \frac{x-\mu}{\sigma}$

$=\frac{4.2-5.1}{0.9}=\frac{-0.9}{0.9}=-1$

When x = 5.1, we have:

$z = \frac{x-\mu}{\sigma}$

$=\frac{5.1-5.1}{0.9}=0$

Therefore, we have to find $P(-1$

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$P(-1$ = $P(z$

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$=0.3413$ or 34.13%

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4 years ago

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