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3 years ago

WILL GIVE A BRAINLIEST IF UR RIGHT PLEASE HELP!!!!!

Mathematics

1 answer:

4vir4ik [10]3 years ago

8 0

There is a break at x = 5 because y = 3 at <5 then shoots up to greater than 6 when x > 5.

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Find the least squares regression line for the data points. (Let x be the independent variable and y be the dependent variable.)

solniwko [45]

Answer:

y = - 0.9167 - 0.75x

Step-by-step explanation:

Given the data:

(−1, 0), (1, −2), (3, −3)

X : - 1, 1, 3

Y : 0, - 2, - 3

The regression model is written in the form:

y = C + mx

Where ;

C = intercept ; m = slope / gradient

Using the regression model calculator on the data values given above :

Slope (m) = - 0.75

Intercept (c) = - 0.9167

Hence,

y = - 0.9167 - 0.75x

6 0

3 years ago

Construct a rectangle with the ratio of the lengths to the width 5:3<br> Need help

ValentinkaMS [17]

Answer:

It could be a rectangle with a length of 25 and a width of 15.

Step-by-step explanation:

Just basically multiply the ratio by common factor to create the rectangle dimensions.

5 0

3 years ago

Jerry took a sample of 4 employees in his office and observed how many hours they each worked one day.

Illusion [34]

The error in Jerry's calculation is 4.84

The number of employees, N = 4

The mean is calculated as:

$\mu = \frac{10+2+4+8}{4} \\\mu = \frac{24}{4} \\\mu = 6$

The formula for the standard deviation is:

$SD =\sqrt{\frac{\sum{(x-\mu)^2}}{N} }$

This can be further calculated as:

$SD = \sqrt{\frac{(10-6)^2+(2-6)^2+(4-6)^2+(8-6)^2}{4} }\\\\SD = \sqrt{\frac{4^2+(-4)^2+(-2)^2+(2)^2}{4} } \\\\SD = \sqrt{\frac{16+16+4+4}{4} } \\\\SD = \sqrt{\frac{40}{4} } \\\\SD = \sqrt{10} \\\\SD = 3.16$

Jerry thinks the Standard Deviation = 8

The true Standard Deviation = 3.16

Error = |True value - Measured value|

Error = |3.16 - 8|

Error = 4.84

Learn more here: brainly.com/question/18562832

3 0

2 years ago

Read 2 more answers

PLEASE HELP!!!!!! I HAVE BEEN STUCK FOR DAYS!!!!

Sveta_85 [38]

Answer:

40 terms

Step-by-step explanation:

the sum to n terms of an arithmetic sequence is

$S_{n}$ = $\frac{n}{2}$ (a₁ + $a_{n}$ )

then

$\frac{n}{2}$ (- 4 - 82) = - 1720 ( multiply both sides by 2 to clear the fraction )

- 86n = - 3440 ( divide both sides by - 86 )

n = 40

the series has 40 terms

3 0

2 years ago

Converse of Pythagorean <br>classify if it right triangle, obtuse, or acute<br>show work

Nikitich [7]

Answer:

Step-by-step explanation:

3 0

3 years ago