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olga55 [171]
2 years ago
12

A statistics student is studying if there is a relationship between the price of a used car and the number of miles it had been

driven. She collects data for 20 cars of the same model with different mileage and determines each car’s price using a used car website. The analysis is given in the computer output.
Predictor Coef SE Coef t-ratio p

Constant 24157. 2 2164. 1 2. 965 0. 046

Mileage -0. 181 0. 024 5. 377 0. 000

S = 3860. 7 R-Sq = 68. 0% R-Sq(Adj) = 67. 5%

Using the computer output, what is the predicted price for a car with 10,000 miles on the odometer?


$22,347. 20

$23,917. 20

$24,157. 20

$25,967. 20
Advanced Placement (AP)
1 answer:
jekas [21]2 years ago
4 0

Based on the computer output, the predicted price for a car with 10,000 miles is $22,347.20.

<h3>What is a least-squares regression?</h3>

A least-squares regression line can be defined as a standard technique in regression analysis and statistics that is typically used to make the vertical distance obtained from the data points running to the regression line to become very minimal or as small as possible.

In statistics, the sum of the residuals for a least-squares regression line is always zero (0) because it determines whether or not a line of regression is a good fit or match for the given data.

Based on the computer output, the predicted price for a car that has covered a distance of 10,000 miles on the odometer is $22,347.20.

Read more on least-squares regression here: brainly.com/question/26059078

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Help please its Algebra 1 honors
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Answer:

f(x)= 50+4.25x

g(x)= 40+6.25x

(5, 71.25)

Explanation:

they are asking for the number of garmets and price of those garmets where both shops charge the same amount

if you make the two shops prices into equations you will be trying to find the line intercept

to make the lines equations

they said f(x) is cleaning company 1

g(x) is cleaning company 2

and x in the number of garmets cleaned

you can see from prices that the price does not start at 0 it has a baseline price to clean

that baseline price is the +____

113.75-92.50 to find the difference in price for 5 garmets

=21.25

21.25/5 to find raise in price per 1 garmet

=4.25

now we know its 4.25x+b

baseline price = b

to find b plug in the values on the chart (first row)

4.25(5)+b=71.25

21.25+b=71.25

b=50

baseline price = 50

store 1 price is= f(x)= 50+4.25x

im gonna run out of space ill do the second one short

103.75-72.5=31.25

31.25/5=6.25

71.25=6.25(5)+x

71.25-31.25=x

x= 40= base price

g(x)= 40+6.25x

find intersection

g(x) =y

f(x) = y

y=y

therefore

50+4.25x=40+6.25x

10+4.25x=6.25x

10+4.25x=6.25x

10=2x

x=5

to find y intersection put in x to equation

y= 50+4.25x

y= 50+4.25(5)

y=50+21.25

y=71.25

intersection is (5, 71.25)

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3 years ago
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