Answer: Option A is correct.
Step-by-step explanation:
The correlation coefficient(r) is a statistical measure that computes the strength of the relationship between two variables.It lies between -1 and 1.
If the correlation coefficient in an ordinary least squares regression = 1.00.
That indicates that there is a perfect relationship between the variables.
i.e. all the data points must fall exactly on a straight line with a positive slope. .
[when r is positive, the slope of the line is positive].
i.e. option A is correct.
All the data points must fall exactly on a straight line with a positive slope. Then the correct option is A.
What is the correlation coefficient?It is a statistical concept that helps in establishing a relation between the predicted and actual value obtained in a statistical experiment. It explains the exactness of the predicted value and actual value.
If the correlation coefficient in an ordinary least squares regression = 1.00.
The correlation coefficient lies between -1 to 1.
If the correlation coefficient in an ordinary least squares regression is 1.00.
Then it indicates that there is a perfect relationship between the variables. That is all the data points must fall exactly on a straight line with a positive slope.
Thus, the correct option is A.
More about the correlation coefficient link is given below.
https://brainly.com/question/12400903
Explain how to use the coordinates and absolute value to find the distance between points at (3, –7) and (3, 2).
Answer:
Using the formula for the distance between two points, which is generated using coordinates and absolute value, we find that the distance between these two points is of 9 units.
Step-by-step explanation:
Distance between two points:
Suppose that we have two points, [tex](x_1,y_1)[/tex] and [tex](x_2,y_2)[/tex]. The distance between them is given by:
[tex]D = \sqrt{(x_2-x_1)^2+(y_2-y_1)^2}[/tex]
This formula is generated using coordinates and absolute value.
In this question:
(3,-7) and (3,2). So
[tex]D = \sqrt{(3-3)^2+(2-(7))^2} = \sqrt{81} = 9[/tex]
The distance between these two points is of 9 units.
) Jess has saved dimes ($ 0.10) and quarters ($ 0.25) in their piggy bank. Define the variables and write a
system of equations to determine the number of dimes and quarters if they have 25 coins worth $4.00
in total. Then solve the system using the best method for the situation.
Answer:
Quarters = 10
Dimes = 15
Step-by-step explanation:
d = number of dimes, q = number of quarters
d + q = 25 is the equation for number of coins
0.1d + 0.25q = 4 is the equation for value of coins
First, solve for d in terms of q:
d + q = 25
d = 25 - q
Then substitute that into the other equation:
0.1(25 - q) + 0.25q = 4
2.5 - 0.1q + 0.25q = 4
0.15q = 1.5
q = 10
And back to d = 25 - q, d = 25 - 10 = 15
Check the math:
0.1(15) + 10(0.25) = 1.5 + 2.5 = 4
LMK if you have questions
What is the simplified form of the following expression?
RootIndex 3 StartRoot StartFraction 4 x Over 5 EndFraction EndRoot
StartFraction RootIndex 3 StartRoot 4 x EndRoot Over 5 EndFraction
StartFraction RootIndex 3 StartRoot 20 x EndRoot Over 5 EndFraction
StartFraction RootIndex 3 StartRoot 100 x EndRoot Over 5 EndFraction
StartFraction RootIndex 3 StartRoot 100 x EndRoot Over 125 EndFraction
Answer:
c StartFraction RootIndex 3 StartRoot 100 x EndRoot Over 5 EndFraction
Step-by-step explanation:
Answer:
Step-by-step explanation:
C. [tex]\sqrt[3]{100}[/tex]x/5
What is the area of this face?
10 in.
20 in.
5 in.
10 in.
10 in.
5 in.
10 in.
Answer:
its 200
Step-by-step explanation:
Which reason justifies the statement below?
If AB + BC = AC and AC = EF + FG,
then AB+BC= EF+FG
Ill give brainless if answered fast
segment addition postulate
sum is the same
ayuda plis es para hoy.
Answer:
8.29
Step-by-step explanation:
Cada linea representa ,1
y como es la ultima linea de las 9 antes del 8,3 la respuesta es 8.29
Jessica is selling girl scout cookies and recorded how many she sold in one afternoon. She sold Thin Mints, Trefoils, and Samoas. a) She sold 54 boxes of Thin Mints, which was 60% of the total number she sold. How many total boxes did she sell? (3 points - 2 pts for correct answer, 1 pt for showing work)
Answer:
total # of boxes sold = 90
Step-by-step explanation:
54 is 60% of total #
54 = .6x
x = 54/0.6 = 90
Juliette ate 1/3 of a cake, and Brad ate 3/8 of the same cake. What fraction of the cake was eaten?
Answer:
17/24
Step-by-step explanation:
Find common denominators...
1/3 = 8/24
3/8 = 9/24
Now add...
17/24 of the cake was eaten
Hope this helps :)
The cost of 5 dresses and 2 belts is $48. The cost of 3 dresses and 2 belts is $32. Find the cost of a dress and a belt. Let x denote the cost of a dress and y denote the cost of a belt.
A: x = $8, y = $4
B: x = $5, y = $4
C: x = $7, y = $10
D :x = $4, y = $5
PLSS ANSWEER ILL GIVE BRAINLIEST
pls explain how to solve the equasion.
Answer:
there does not seem like a picture so I dont know the answer
Is -6 greater than -3??
Answer:
No.
Step-by-step explanation:
-3 is greater than -6. I Hope this helps. Im trying to level up so I'd appreiciate it if you marked me as brainliest. Thank you!
A new car is purchased for 20700 dollars. The value of the car depreciates at 11% per year. What will the value of the car be, to the nearest cent, after 11 years?
the supermarket down the street from tina sells a cereal like beard called delici-osos. Last week, they sold 45 boxes of cereal. How many boxes will they sell in 7 weeks?
Answer:
they will sell 315 boxes in 7 weeks
Step-by-step explanation:
This is because you have to multiply 45 x 7 = 315
The area of a triangle is 30 square feet. If the height of the triangle is 5 feet, what is the base of the triangle?
Answer:
150
Step-by-step explanation:
Answer:
12 feet
Step-by-step explanation:
Area of a triangle is A = 1/2 b h
Plug in:
Area = 30
Height = 5
30 = 1/2 (5)b
Divide by 1/2:
30 / 1/2 = 60
60 = 5b
Divide by 5:
60 / 5 = 12
12 = b
Base = 12 feet
Can anyone please help me
Answer:
a. c = 5.5n
b. Continuous
c. $33
Step-by-step explanation:
A store sells assorted nuts for $5.50 per pound.
a) Write a function in equation form to represent the total cost (c) of any number of pounds of nuts (n)
For every n, 5.5 is added to c. Thus, c = 5.5n
b) Will the graph of this function be continuous or discrete?
Continuous domains are ones that continue on in between intervals. For example, the height of someone would be continuous, because it could, for example, be between 50 inches and 70 inches. On the other hand, discrete domains are ones that can only be a set of given numbers. An example would be how much food you need to feed to a number of cats (for example, each cat needs to eat 0.5 pounds of food). Because you cannot have half a cat, the domain needs to have whole numbers.
Because you can buy 0.5 or 0.2 (or any amount of nuts), the domain is continuous.
c) What would the total cost be for 6 pounds of nuts?
Using the function from a), we know that the cost is 5.5n, where n is the amount of nuts you buy, in pounds. So, plug in "6"
5.5n = 5.5 * 6 = 33
Cost is $33
I hope this helps! Feel free to ask any questions!
Type the correct answer in each box.
Lake Temperature (°C)
Lake A
-2
Lake B
0
Lake C
2
Lake D
-1
°C.
The coldest lake has a temperature of
°C, and the warmest lake has a temperature of
Reset
Next
Answer:
Coldest has - 2° C while warmest had 2 °C
Freeee BRAINLY okkkkkkkkkkkkk
Answer: 80 + 2x +10 = 180
Step-by-step explanation:
Sorry if I'm wrong I just think that's the answer.
HELP 30 POINTS!!!!!HELP 30 POINTS!!!!!HELP 30 POINTS!!!!!HELP 30 POINTS!!!!!HELP 30 POINTS!!!!!
What is the value of p in the equation?
One-fourth (8 minus 4 p) + 2 p = 12
–20
–2
5
10
Answer:
-10 if you meant 1/4(8-4p)
-20 if you meant 1/4{(8-4p)+2p}
Step-by-step explanation:
Answer:
-10 if you meant 1/4(8-4p)
-20 if you meant 1/4{(8-4p)+2p}
Step-by-step explanation:
hope this helps have a great day.
Two different formulations of an oxygenated motor fuel are being tested to study their road octanenumbers. The variance of road octane number for formulation 1 is ı2 = 1.5, and for formulation, 2it is ı2 = 1.2. Two random samples of size n1 = 15 and n2 = 20 are tested, and the mean roadoctane numbers observed are x1 = 89.6 and x2 = 92 5. Assume normality. Find the 95%confidence interval for the difference in the mean octane number.
Answer:chomai
Step-by-step explanation:chomai
SOLVE THE LATRAL AND TOTAL SURFACE AREA OF THE CYLINDER
I NEED AN EXPLANATION
radius r=7
height h=9
let pi π = 3.14159
Question 2 of 43
What is the volume of this composite solid?
2 m
4 m
7 m
2 m
2 m
A. 58 cubic meters
Answer:
8 + 56 = 64
Step-by-step explanation:
Even if they dont give the third given length you can obviously see its a cube so all lengths are equal so multiply 2 by itself 3 times to get 8. Then the left figure will be multiplied like this: 7 x 2 x 4 = 56. Then you add them up to get 64.
Easy 5th grade math help giving free brainliest. please answer!!
Answer:
12
Step-by-step explanation:
3 ÷1/4= 12Answer:
12
Step-by-step explanation:
3 ÷ [tex]\frac{1}{4}[/tex]
Keep the first number, change the symbol, and flip the fraction. (KCF)
[tex]\frac{3}{1}[/tex] × [tex]\frac{4}{1}[/tex] Solve
[tex]\frac{12}{1}[/tex] or 12
Pls help me on this problem
Answer:
The Answer for that is 100
Dunkin Donuts sold 1,600 drinks in one day. Of those drinks, 87.5% of them were coffee . How many of the drinks were coffee?
Answer: 1400 is coffee.
Step-by-step explanation:
The Lcm of 4,9 what is that
Answer:
36
Step-by-step explanation:
Answer:
36
Step-by-step explanation:
Select the expression that shows the next step for the following division
problem:
11 유는
x
6
a.
b.
5
11
5
d.
11
O a.
ob.
O d.
We need to assign 4 students (Daniel, Jeremy, Xiaoying, Ashu) to 3 different teams (Team 1, Team 2, and Team 3). Each team needs to have at least 1 student. To maximize productivity, it has been determined that Ashu and Jeremy cannot be on the same team. How many different ways are there to assign the teams?
Answer:
There are five different ways to assign teams.
Step-by-step explanation:
To make the correct assignment we must bear in mind that there are two variables or students that will always be static, which are Aishu and Jeremi, so the other two students could be assigned with each of them finally 5 teams can be successfully formed.
First team: (Aishu-Xiaoying), (Jeremy), (Daniel)
Second team: (Aishu), (jeremy-xiaoying),(Daniel)
Third Team: (Aishu), (Jeremy), (Daniel-Xiaoying)
Fourth Team: (Aishu-Daniel), (Jeremy), (Xiaoying)
Fifth Team: (Aishu), (Jeremy-Daniel), (Xiaoying)
Six friends went to a baseball game. The price for admission per person was $x. Three of the friends bought a hot dog for $3. Write and simplify an expression that represents the total cost
Answer:
y=6x+9
Where y is the total cost, x is the price for admission, 6 is the number of friends, and 9 is the amount spent on hotdogs.
A pack of 12 pens costs £3.60 . How much does one pen cost ?
30 cents
Step-by-step explanation:
Please help!!!! !!!!!!!!
Step-by-step explanation:
Sum of all interior angles = 900°
A+B+C+D+E+F+G=900
120+B+148+90+142+130+129=900
B=900-759
B=141°