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zlopas [31]
3 years ago
15

HELP DUE TODAYYYYYYYY

Mathematics
2 answers:
fomenos3 years ago
7 0

Answer:

Idc

Step-by-step explanation:

ira [324]3 years ago
3 0
Line one: y2-y1/x2-x1 which is -8-2/2-(-2) which equals -10/4 and as a decimal it’s -2.5
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Bicycling World, a magazine devoted to cycling, reviews hundreds of bicycles throughout the year. Its Road-Race category contain
sweet [91]

Answer:

Check the explanation

Step-by-step explanation:

S_{yy}=\sum y^{2}-\frac{\left (\sum y \right )^{2}}{n}=52120800

S_{xx}=\sum x^{2}-\frac{\left (\sum x \right )^{2}}{n}=21.74

S_{xy}=\sum xy-\frac{\left (\sum x \right )\left (\sum y \right )}{n}=-31284

Slope of the regression equation is

b_{1}=\frac{S_{xy}}{S_{xx}}=-1439.01

and intercept of the equation will be

b_{0}=\frac{1}{n}(\sum y - b_{1} \sum x)=28818.00

So the regression equation will be

y'=28818.00-1439.01x

C.

the attached images below comprise of the output of the regression analysis generated by excel:

Intercept:

Hypotheses are:

H_{0}:\beta_{0}=0,H_{a}:\beta_{0}\neq 0

t-value of intercept is 8.820

P-value is 0.0000

Since p-value is less than 0.05 so intercept is significant to the model.

Slope:

Hypotheses are:

H_{0}:\beta_{1}=0,H_{a}:\beta_{1}\neq 0

t-value of intercept is -7.12

P-value is 0.0000

Since p-value is less than 0.05 so slope is significant to the model.

D.

Since from regression output R-square is 0.864 so 86.4% of the variation  in the prices of the bicycles is accounted for by the weight of bicycles.

E.

For X= 15 estimated y value is

y'=28818.00-1439.01*15 = 7232.85

hence, required predicted price is $7232.85.

5 0
4 years ago
Find the circumference of the circle in terms of π (pi)
Vesna [10]
The answer is C I believe
8 0
3 years ago
Read 2 more answers
Rashad is filling a toy box with wooden blocks that are each a unit cube in size He filled the bottom layer of a toy box with 15
victus00 [196]
Youre Looking for the the box's volume. multiply the filled bottom number (15) by the hight(3) and u will know how many 'units' you can fit into the box.
6 0
4 years ago
2.300 in word form and the value of 3
Sunny_sXe [5.5K]
Two and Three Tenths is the word form of 2.300. 
The 3 holds the value of Three Tenths.
8 0
3 years ago
Witch of the following is perpendicular to maple street?
castortr0y [4]

Answer:

A. 2nd avenue

Step-by-step explanation:

There is a 90 degree angle between Maple Street and 2nd Ave., so therefore it is perpendicular

5 0
3 years ago
Read 2 more answers
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