1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
earnstyle [38]
3 years ago
11

A random sample of records of electricity usage of homes in the month of July gives the amount of electricity used and size (in

square feet) of 135 homes. A regression was done to predict the amount of electricity used (in kilowatt-hours) from size. The residuals plot indicated that a linear model is appropriate. The model is usage = 1254 + 0.7 size. What would a negative residual mean for people living in a house that is 2284 square feet?
(A) They are using more electricity than expected.

(B) Their house is smaller than expected.

(C) Their house is bigger than expected.

(D) They are using the least amount of electricity of all of the houses sampled.

(E) They are using less electricity than expected.
Mathematics
2 answers:
erica [24]3 years ago
7 0

Answer:

<h2>(E) They are using less electricity than expected.</h2>

Step-by-step explanation:

The given model is

usage=1254 +0.7(size)

Their hous is 2284 square feet, so

usage=1254+0.7(2284)=2852.8

As you can observe they are using 2852.8 kilowatts.

If there's a negative residual, that would mean they are below the average or the expected usage.

Therefore, the right answer is E.

pickupchik [31]3 years ago
6 0

Answer:

E) They are using less electricity than expected.

Step-by-step explanation:

The residual mean value is the observed value minus the predicted or expected value. If it is negative it means that the expected value of electricity usage is higher than the observed electricity usage value, so they are using less electricity than expected.

You might be interested in
Write the equation below in standard form<br> y = 2/3 x + 5.
Rashid [163]

this is ur answer i hope u do well good luck:

8 0
2 years ago
Read 2 more answers
Which statement describes the function shown on the graph
Anna007 [38]
Let’s use process of elimination
Since the y intercept is at (0, y)
It is around -9 and -10
It cannot be A or C
Now for slope, it is moving up at a steep pace. The slope should be positive.
For D, the slope is too little.
Therefore, it has to be B

Solution: B
7 0
2 years ago
Consider a line passing through the points A(–28, –13) and B(28, 15). Type the y-value for the point C(–24, y) to ensure that po
Nostrana [21]

Step-by-step explanation:

\frac{y_2-y_1}{x_2-x_1}=\frac{15-(-13)}{28-(-28)}\\=\frac{28}{2(28)}\\\therefore\ m=\frac{1}{2}\\\frac{y-y_1}{xl-x_1}=m]\\\frac{y+13}{x+28}=\frac{1}{2}\\2y+26=x+28\\2y=x+2\\ y=\frac{1}{2}x+1

In order to find y for point C on AB, substitute point C in line equation if AB.

y=\frac{1}{2}(-24)+1\\\therefore y=-12+1=11\\\therefore C(-24, -11)

7 0
3 years ago
Write a new function that represents a transformation to the parent function if the new function shifts right 5 units and up 3 u
irga5000 [103]

Answer:

Let's define two transformations.

Vertical translation.

If we have a function f(x), a vertical translation of N untis is written as:

g(x) = f(x) + N

If N is positive, then the translation is upwards

If N is negative, then the translation is downwards.

Horizontal translation.

If we have a function f(x), a horizontal translation of N units is written as:

g(x) = f(x - N)

if N is positive, then the translation is to the right

If N is negative, then the translation is to the left.

Now we have a function g(x) that is a transformation of a parent function f(x) (we actually do not know which parent function, so i assume f(x) = x^2) such that we have a shift right 5 units and up 3 units.

Then:

g(x) = f(x - 5) + 3

and again, using f(x) = x^2

g(x) = (x - 5)^2  + 3

6 0
2 years ago
People think im heartless well no i wasn't born without a heart I watched people break me yah I'm a nightmare i don't really car
iragen [17]

Answer:

Born Without A Heart by Faouzia

Step-by-step explanation:

8 0
3 years ago
Read 2 more answers
Other questions:
  • (0,-4),(1,0),(2,2) find a quadratic function in standard form for each set of points.
    5·1 answer
  • -23.5-9.5r=-5(7.5r+9)
    15·1 answer
  • Sofia lives in a $105,000 brick house in the suburbs with contents valued at
    7·1 answer
  • 10 ( y - 2)<br> what is the answer
    15·2 answers
  • DUE IN 30 MINUTES HELP NEEDED ASAP!!!!
    7·2 answers
  • WHAT IS THE VAULE OF X??? Please help me :,(
    13·2 answers
  • Can someone please help me...
    6·2 answers
  • The base and height of a rectangle are 134.4 and 98.46, find the sum of the lengths of the two diagonals of the rectangle?
    12·1 answer
  • What is the length of side AB of parallelogram ABCD?<br> units<br> 4g - 8<br> B<br> q+4
    8·1 answer
  • Geometry: Write the theorem or postulate for each of the following, ASAP!!!
    8·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!