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
aalyn [17]
1 year ago
5

Given the data shown below, which of the following is the best approximation of the coefficient of determination (r^2)

Mathematics
1 answer:
HACTEHA [7]1 year ago
8 0

The coefficient of determination can be found using the following formula:

r^2=\mleft(\frac{n(\sum ^{}_{}xy)-(\sum ^{}_{}x)(\sum ^{}_{}y)}{\sqrt[]{(n\sum ^{}_{}x^2-(\sum ^{}_{}x)^2)(n\sum ^{}_{}y^2-(\sum ^{}_{}y)^2}^{}}\mright)^2

Using a Statistics calculator or an online tool to work with the data we were given, we get

So the best aproximation of r² is 0.861

You might be interested in
the ages of two friends Sunaina and Tanish are differ by 2 years sunaina's father is twice as old as Sunaina and Tanisha is twic
nikklg [1K]

Let S represent Sunaina's age.

Let T represent Tanish's age.

So 2S - T/2 = 40, 4S - T = 80.

Either S - T = 2 or T - S = 2. Let's try both cases.

Either 3S = 78 or 3S = 82.

Since 82 is not a multiple of 3, S = 26.

So Sunaina is 26 years old and Tanish is 24 years old.

4 0
3 years ago
Determine if the equation is linear. If so, graph the function.
musickatia [10]

Answer:

The equation is not linear

Step-by-step explanation:

You are given the equation

\dfrac{2}{x}+\dfrac{y}{4}=\dfrac{3}{2}

Express y in terms of x:

\dfrac{y}{4}=\dfrac{3}{2}-\dfrac{2}{x}\\ \\\dfrac{y}{4}=\dfrac{3x-4}{2x}\\ \\y=4\cdot \dfrac{3x-4}{2x}\\ \\y=\dfrac{6x-8}{x}

The linear function must of form

y=mx+b,

where m and b are real numbers.

Your function is not of this form, so this is not a linear function.

5 0
3 years ago
I need help I don’t know how to do this
Law Incorporation [45]

Answer:

its about checkers cou nt and answer

Step-by-step explanation:

5 0
3 years ago
HALP PLSSSSSSSS will give brainliset
BARSIC [14]

Answer:

ezz multiply and see what it s if its wrong then txt me

Step-by-step explanation:

5 0
2 years ago
What is the range of this function?
Rzqust [24]

Greetings.

The range is the set of y-value.

The range starts from the minimum point to maximum point.

Our minimum point starts at 0 and maximum point starts less than infinity.

Therefore the range is 0<=y<+inf

However, we do not often write that, although it is right.

Therefore we write as y≥0

Thus, the answer is B choice.

5 0
3 years ago
Other questions:
  • Make W the subject of the formula: P= 3w+20/200 HELP ASAP PLEASE, THANK YOU
    10·1 answer
  • Henry constructed Circle a with a radius of 10 units. He then created a sector as shown in the figure below period which of the
    5·2 answers
  • What are some facts about expressions
    9·1 answer
  • Determine which point lies on the graph of the equation y=7x^2-3x+2
    10·1 answer
  • The local bakery sells cookies for $7.99 per dozen. which equation represents y, the total cost of x dozen of cookies?
    13·1 answer
  • The population of Columbus Ohio in 2014 was about 823,000. The population of the united states was about 319 million in 2014.
    7·1 answer
  • 8/7 multiply by 7/10
    9·1 answer
  • Points A,b,c, and d are on a line. They are not necessarily in that order. Point A is between b and c.Point d is to the left of
    5·1 answer
  • 5/x+6- 7/3= 2/7x+42 solve for x given the equation, is there are multiple solutions separate them by a comma, what are the exclu
    7·1 answer
  • Please help I’m stuck on this question
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!