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3 years ago

Find the slope of the line perpendicular to the given line. y=-3/5x+1

Mathematics

1 answer:

Artyom0805 [142]3 years ago

5 0

Answer: y= 3/5x+1

Step-by-step explanation: if you want to check if its perpendicular go on Desmos graphing calculator on goolge and plug both equations:)

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Please consider the following values for the variables X and Y. Treat each row as a pair of scores for the variables X and Y (wi

Studentka2010 [4]

Answer:

The Pearson's coefficient of correlation between the is 0.700.

Step-by-step explanation:

The correlation coefficient is a statistical degree that computes the strength of the linear relationship amid the relative movements of the two variables (i.e. dependent and independent).It ranges from -1 to +1.

The formula to compute correlation between two variables <em>X</em> and <em>Y</em> is:

$r(X, Y)=\frac{Cov(X, Y)}{\sqrt{V(X)\cdot V(Y)}}$

The formula to compute covariance is:

$Cov(X, Y)=n\cdot \sum XY-\sum X \cdot\sum Y$

The formula to compute the variances are:

$V(X)=n\cdot\sum X^{2}-(\sum X)^{2}\\V(Y)=n\cdot\sum Y^{2}-(\sum Y)^{2}$

Consider the table attached below.

Compute the covariance as follows:

$Cov(X, Y)=n\cdot \sum XY-\sum X \cdot\sum Y$

$=(5\times 165)-(30\times 25)\\=75$

Thus, the covariance is 75.

Compute the variance of X and Y as follows:

$V(X)=n\cdot\sum X^{2}-(\sum X)^{2}\\=(5\times 226)-(30)^{2}\\=230\\\\V(Y)=n\cdot\sum Y^{2}-(\sum Y)^{2}\\=(5\times 135)-(25)^{2}\\=50$

Compute the correlation coefficient as follows:

$r(X, Y)=\frac{Cov(X, Y)}{\sqrt{V(X)\cdot V(Y)}}$

$=\frac{75}{\sqrt{230\times 50}}$

$=0.69937\\\approx0.70$

Thus, the Pearson's coefficient of correlation between the is 0.700.

5 0

3 years ago

Quantity of 42.1% of 375.4

Stells [14]

That is =
(42.1/100)*37.5
=(421/1000)*(375/10)
=(157875/10000)
=15.7875
=15.8
=16

8 0

3 years ago

If you flip three fair coins, what is the probability that you’ll get heads on the first two flips and tails on the last flip

Len [333]

Answer:

1/8

Step-by-step explanation:

5 0

3 years ago

You randomly select one card from a 52-card deck. Find the probability of selecting a red three or a black two.

sammy [17]

The answer is 2/52 or if you want a rounded up answer it is 1/26

7 0

3 years ago

Could I please have the answer to this problem? Could I also please have an explanation, as I'm confused and I don't understand.

tatiyna

Answer:

B is the answer as it's means intersection and none of the numbers intersect x and y

8 0

3 years ago

Read 2 more answers