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3 years ago

9

What is the equation of the least squares regression line for the data set?

1 answer:

Rus_ich [418]3 years ago

5 0

hey the answer is y=1.862x−0.138 just took the test!

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Help me solve 18.4/2.3*3.4+13.812

dexar [7]

=(8)(3.4)+13.812
=27.2 + 13.812
=41.012
the Answer is 41.012

7 0

3 years ago

I need help. What is 9 - 3 / 1/3 + 1?

Allushta [10]

6/ 2/3 that the answe ti that that should be the answer

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3 years ago

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The life spans, in years, of some plants in a nursery are shown below:

yKpoI14uk [10]

Jack incorrect plotted the third quartile.

Explanation:

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3 years ago

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I need help, it’s a true or false question

marusya05 [52]

Answer:

The answer to this is False, False, True.

Step-by-step explanation:

A is false because WAU is an obstute angle, which can't be 55 degree.

B is flase because YAU is actually the angle that is 55 degree, not 35 degree.

C is true because WAX is congruent to YAU and it is 55 degree.

5 0

2 years ago

HELP!! I NEED THIS QUICKLY

Elza [17]

Answer:

A and D

Step-by-step explanation:

We are given that

(3/4,2/3),(1/4,1),(1,1/2) and (1/2,1)

$x_1=\frac{3}{4}$

$y_1=\frac{2}{3}$

$x_2=\frac{1}{4},y_2=1$

$x_3=1,y_3=\frac{1}{2}$

$x_4=\frac{1}{2},y_4=1$

k= $\frac{1}{2}$

Direct proportion:

$\frac{x}{y}=k$

Inverse proportion: $xy=k$

$\frac{x_1}{y_1}=\frac{3}{4}\times \frac{3}{2}=\frac{9}{8}\neq \frac{1}{2}$

Therefore, it is not in direct proportion.

$\frac{1}{4\times 2}=\frac{1}{8}\neq\frac{1}{2}$

$\frac{1}{\frac{1}{2}}=2\neq \frac{1}{2}$

$x_1y_1=\frac{3}{4}\times \frac{2}{3}=\frac{1}{2}$

$x_2y_2=\frac{1}{4}\times 2=\frac{1}{2}$

$x_3y_3=1\times \frac{1}{2}=\frac{1}{2}$

$x_4y_4=\frac{1}{2}\times 1=\frac{1}{2}$

Therefore, $xy=k=\frac{1}{2}$

Hence, the given points form an inverse variation .

$xy=\frac{1}{2}$

$y=\frac{1}{2x}$

Option A and D is true.

6 0

3 years ago