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3 years ago

Write an equation in Slope Intercept-Form (y=mx+b) slope= 2 y= -5

Mathematics

1 answer:

Diano4ka-milaya [45]3 years ago

6 0

Answer:

y= 2x-5

Step-by-step explanation:

I just plugged the information into the formula.

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A bank's loan officer rates applicants for credit. The ratings are normally distributed with a mean of 200 and a standard devia

Butoxors [25]

Answer:

Probability that their mean is above 215 is 0.0287.

Step-by-step explanation:

We are given that a bank's loan officer rates applicants for credit. The ratings are normally distributed with a mean of 200 and a standard deviation of 50.

For this, 40 different applicants are randomly selected.

<em>Let X = ratings for credit</em>

So, X ~ N( $\mu=200,\sigma^{2}=50^{2}$ )

Now, the z score probability distribution for sample mean is given by;

Z = $\frac{X-\mu}{\frac{\sigma}{\sqrt{n} } }$ ~ N(0,1)

where, $\mu$ = population mean = 200

$\sigma$ = standard deviation = 50

$\bar X$ = sample mean

n = sample of applicants = 40

So, probability that their mean is above 215 is given by = P( $\bar X$ > 215)

P( $\bar X$ > 215) = P( $\frac{X-\mu}{\frac{\sigma}{\sqrt{n} } }$ > $\frac{215-200}{\frac{50}{\sqrt{40} } }$ ) = P(Z > 1.897) = 1 - P(Z $\leq$ 1.897)

= 1 - 0.97108 = 0.0287

Therefore, probability that their mean is above 215 is 0.0287.

5 0

3 years ago

A sample of 100 roller coaters examines the relationship between top speed (response) and max drop (explanatory). Based off of t

vekshin1

Answer:

From the plot it is clear that assumption 1 and 2 are violated. That is, the assumption of equal variance ( homoscedasticity) and there aren't any outliers.

Step-by-step explanation:

Both variables are quantitative and The relationship is linear have not been violated.

6 0

3 years ago

In a wood there are 420 silver birch trees 160 oak trees and 300 wild cherry trees what percentage is the oak trees give answer

frosja888 [35]

That would be 7.2 if my calculations are correct

6 0

4 years ago

Read 2 more answers

1. Triangle XYZ has vertices at X (2, -1), Y (-4, -1), and Z (2, 2). The triangle will be dilated by a scale factor of 4. What w

sweet-ann [11.9K]

Answer:

Can’t right. Now

Step-by-step explanation:

8 0

3 years ago

Does anyone knows 4b^2(b^3-8)

fgiga [73]

Answer

4b^5-32b^2

Step-by-step explanation:

3 0

3 years ago