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
Kryger [21]
2 years ago
13

To find how much money the average American family spends to cool their home, 100 Alaskan families are surveyed at random. Of th

e families, 85 said they spend less than $75.00 per month on cooling their homes. Based off that survey, the researcher concluded that the average AMERICAN family spends less than $75.00 per month on cooling their homes.
Is this conclusion valid or not valid?
Mathematics
1 answer:
zhenek [66]2 years ago
8 0

Answer:

Step-by-step explanation:

Statistically this is valid

But, in Alaska average daytime summer temperatures range from approximately 55 to 78 °F (12.8 to 25.6 °C); average daytime winter temperatures are about 5 to 30 °F (−15.0 to −1.1 °C). SO, they don't need cooling when compared to rest of the USA. Therefore this will not be valid.

You might be interested in
Find the volume to the nearest cm3<br> 20 cm<br> 35 cm<br> 12 cm
riadik2000 [5.3K]
Answer: 10380cm^3

Explanation:

Find the volume of half cylinder:

V = (pi x r^2 x h)/2 (I use pi = 22/7 for simplifying)
V = 22/7 x 6^2/2 x 35
V = 22/7 x 36/2 x 35
V = 22/7 x 35 x 18
V = 22 x 5 x 18
V = 1980cm^3

Find the volume of the rectangle:

V = 20 x 35 x 12
V = 240 x 5 x 7
V = 1200 x 7
V = 8400cm^3

Find the volume of the whole shape:

V = 1980 + 8400
V = 10380cm^3

3 0
3 years ago
Suppose that e and f are two events and that upper p left parenthesis upper e right parenthesis p(e) equals = 0.5 0.5 and upper
Fofino [41]
I believe it is 0.10?
5 0
3 years ago
The vertex of this parabola is at (3,5). When the Y value is 6X value is negative one what is the coefficient of the squared ter
iren2701 [21]

We know that equation of a parabola is given by :-

y = a(x-h)² + k

Where (h,k) is the vertex of parabola and (x,y) is any point on its curve.

Given that vertex of parabola is (3,5) and one point (x,y) is (6,-1).

We can plug the given information in the equation of parabola and solve it for value of 'a' :-

-1 = a(6 - 3)² + 5

-1 = a(3)² + 5

-1 = 9a + 5

9a = -1 -5 = -6

a = \frac{-6}{9} = \frac{-2}{3}

a = \frac{-2}{3} is the final answer.

7 0
3 years ago
30 POINTS PLUS BRAINLIEST PLEASE ANSWER THESE MATH QUESTIONS.ALL TROLL ANSWERS WILL BE REPORTED MUST HE DONE IN 1HR OR.LESS.
ipn [44]

Answer:

4) wall = 114 ft^2

$118.56 to paint

5) 77 cm^2

Step-by-step explanation:

4) (15 x 8)-(2 x 3)=120-6=114 ft^2

114 x $1.04 = $118.56

5) (14 x 3.5) + (8 x 3.5) = 49 + 28 = 77 cm^2

8 0
3 years ago
Read 2 more answers
Helppppppp mmeeeeee plllzzzzz
nikdorinn [45]

Answer: the answer is 6

Step-by-step explanation:

7 0
3 years ago
Other questions:
  • PLEASE SOLVE
    5·1 answer
  • 27/36 in simplest form
    5·1 answer
  • The amount of grazing land available for each cow varies inversely with the
    9·1 answer
  • The circumference of a circle with a radius of 1 is 2π. Set up a proportion to find the circumference of a circle with a radius
    8·2 answers
  • 13) In the proof: STATEMENT: Z1 = Z2 REASON: 13)
    13·1 answer
  • What is the slope of the following graph?
    11·1 answer
  • Which factored form of 10x + 120x + 320 reveals all the zeros of the function it defines?
    11·1 answer
  • Can anyone help pleas:&gt;
    6·2 answers
  • i do not wan t have to do this again so in return ill give brain to the the first answer correct and 5 stars and thanks
    9·1 answer
  • please help me ASAPif asked is this a text or a quiz- this is a practiceif asked if a agree to the terms and guidelines- I agree
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!