Answer:
the answer is B (x and y have a weak, positive correlation)
Give the person above me brainlyest for helping!
Step-by-step explanation:
The coefficient of correlation for the given data of x and y is 0.78.
x and y have a strong, positive correlation
What is Coefficient of Correlation?
A correlation coefficient is a number between -1 and 1 that tells you the strength and direction of a relationship between variables. In other words, it reflects how similar the measurements of two or more variables are across a dataset.
Here, given values of x and y
x 1 2 3 4 5 6
y 3 4 9 7 2 18
xy 3 8 27 28 10 108
x² 1 4 9 16 25 36
y² 9 16 81 49 4 324
∑x = 21, ∑y = 43, ∑xy = 194, ∑x² = 91, ∑y² = 483, n = 6
Now, Correlation between x and y
r = (n∑xy - ∑x.∑y)/ √[{n∑x²- (∑x)²}{n∑y² - (∑y)²}]
r = ( 6 X 194 - 21 X 43 ) / √[ {6 X 91 - (21)²}{ 6 X 483 - (43)²}]
r = ( 1164 - 903) / √( 546 - 441)(2898 - 1849)
r = 261 / √ 105 X 1049
r = 261 / √110145
r = 261 / 331.88
r = 0.78
Thus, The coefficient of correlation for the given data of x and y is 0.78.
x and y have a strong, positive correlation
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For a party, Mr. Lee is going to put together three square tables with 5-foot sides end to end to form one long table. What is the area of the long table?
1. 75 square feet
2. 100 square feet
3. 150 square feet
4. 225 square feet
I need a full explanation to give you a brainliest, a thanks and a 5 star review!!!
Answer:
75 square feet
Step-by-step explanation:
If you put 3 tables together thats length is 5 square feet you add up the 3 5 feet which is 15 and you multiply that by the 5 on the end and you get 15.
15 feet
5 feet 5 feet 5 feet
_________________|____________________|__________________
| |
5ft | 15 x 5 = 75 square feet |
|______________________________________________-_________|
Answer:
75 square feet
Step-by-step explanation:
Because if each side of the table is 5 feet all you have to do is multiply 5 by 5 and get 25. Then, since their are 3 table just multiply 25 by 3 to get 75.
Please help ASAP (Middle School) (Probability)
Answer:
1/8
Step-by-step explanation:
Let's say that xy=z. If zx=y, what would x, y, and z equal?
Answer:
[tex]x = 1[/tex]
[tex]y=z[/tex]
Step-by-step explanation:
[tex]xy = z\\zx = y[/tex]
Substitute [tex]z[/tex] and [tex]y[/tex] back into the equations.
[tex]xyx =y\\x^2y=y\\x^2=1\\x=\sqrt{1} = 1[/tex]
[tex]z(1) = y\\z=y[/tex]
We cannot find [tex]z[/tex] and [tex]y[/tex] as we don't have enough information.
True or false? Which one?
Answer:
true
hope this helps
have a good day :)
Step-by-step explanation:
Answer:
true
Step-by-step explanation:
9x9x3=243 so does 3 to the power of 5 (3^5)
Please help!! I'll give brainliest!
Identifying Triangle Congruence
Answer:
1. SAS
2. SSS
3. ASA
4. AAS
5. RHS
Answer: your answers would be
1, SAS
2, SS
3,SAS
4, SAA
5, SAS
6, SA
7, SAS
8, SSS
9, SSA
10, ASA
11, SSS
12. ASA Explanation: A shape is congruent when it's all sides are the same SSS but also the shape's side and angle could also be counted as congruent. it can be like this ASA, SAS, HL, and AAS are a theorem of Congruent but not AA, SS, SSA, AS and AAA this is because They have only two side congruent we don't know the 3rd side. Also SSA is not congruent because we don't know if the unknown side is equal another thing is SSA spelled back word is A## so lets just leave it at that
Is (1, 0) a solution to the equation y = 3x?
Explain why
========================================================
Explanation:
The point (1,0) means x = 1 and y = 0 pair up together.
Replace each variable with those values to get
y = 3x
0 = 3(1)
0 = 3
We get a false statement, so that's why (1,0) is not a solution.
----------
If we plugged in x = 1, then we should get this y value
y = 3x
y = 3*1
y = 3
Meaning (1,3) is a solution. This point is on the line y = 3x.
Answer:
No
Step-by-step explanation:
Because when you take y = 0, you get x =0, not 1.
y =3x
0 = 3x
x = 0
(0, 0) ; (1, 3) (2, 6) . . . are the solutions
Please answer this question asap!!!!!!!!1
Answer:
i think its 2400 square metres
Step-by-step explanation:
Answer:
3656.64 m^2 to nearest hundredth.
Step-by-step explanation:
Area = area of rectangle + area of a circle
The radius of the circle = 1/2 * 40 = 20.
Area = 40*60 + π*20^2
= 3656.64 m^2.
help........right answers only plz :(
just i lilbit more plz help me
Answer:
36
Step-by-step explanation:
1/3y = 12
12 x 3 = 36
y = 36
Answer:
y=4
Step-by-step explanation:
bring the y by the 1/3 down , turn the 12 into a fraction so it will b 12/1 so u would do 1/3 devided by 12/1 so it would b y=4
Simplify to create an equivalent expression.
Answer:
a.) -20p - 2
Step-by-step explanation:
The time required to make one bouquet in a flower stall is of an hour. Find the time
required to make 18 such bouquets.
Answer:
13.5 hours
the fitness gram pacer test is a multi stage aerobic capacity test that progressivly gets more difficult as it continues
Answer: Answer: 27/2 of an hour
Step-by-step explanation: Time required to make 1 bouquet = 3/4 of an hour
Time required to make 18 bouquet = ?
= 18 × 3/4
A factory makes aquariums. Each aquarium is in the shape of a triangular prism, as shown below. If the factory made aquariums that require a total of
12,600 8 of water, how many aquariums did the factory make?
Answer:
The factory made about 382 aquariums:
Step-by-step explanation:
Answer:
382
Step-by-step explanation:
Find the product of two monomials: 4ab X - 5ab
Answer:
-20a^2b^2
Step-by-step explanation:
4ab * -5ab we see the qu asks to multiply a negative with a positive
so we automatically know it will be a negative. and we know monomials become squared.
4 x -5 = -20
ab x ab = a^2 b^2
As a full sum.
4ab * -5ab = -20a^2 b^2
lildevwashingwhips? Please answer
Answer: ?????
Step-by-step explanation:
Faye has two identical shoe boxes shaped like ones shown in the trunk of her car...
Help please and NO LINKS! Thanks
Answer:
942.5 in^3
Step-by-step explanation:
alright so to find how much space they occupy you just gotta multiply length × width × height. 6.5×14.5×5 is 471.25 u take that and multiply by 2
471.25×2 since there's two boxes. There's your answer 942.5 in^3
Answer:
I think the answer is 942.5 in^3. so C
Step-by-step explanation:
help plz for brainliest
Answer:
75 in³
x: 30
y: 20 35
Step-by-step explanation:
v = πr²h / 3
v = 3.14 * 3² * 8 / 3
v = 3.14 * 9 * 8 / 3
v = 75.36 in³
Rounded
v = 75 in³
---------------------
x increase by 10 for each step
y increases by 7.5 for each step
x: 0 10 20 30 40
y: 5 12.5 20 27.5 35
please help no links
Answer: B or C
Step-by-step explanation:
if u can compare the triangles u u can use ur math and get the answer
Answer:
B. 6
Step-by-step explanation:
Since both triangles are similar, you can set up a proportion.
[tex]\frac{8}{13} = \frac{x}{9.75} \\\\8 * 9.75 = 13x\\78 = 13x\\x= 6.[/tex]
Find the TWO integers whos product is -18 and whose sum is -7
Answer:
-9 , 2
Step-by-step explanation:
2x-9 = -18
2-9 = -7
question and answers in imageeeeee
Answer:
red= circumfrence
black= diameter
green= radius
yellow= area
Step-by-step explanation:
Answer:
red goes with diameter
10 pts per question on timed test!!!!!
What are the dimensions of the base of the pyramid?
choices
8 ft by 6 ft
8 ft by 3 ft
6 ft by 3 ft
8 ft by 9 ft
On a number line, there are two numbers, 535 and -8, how far are these two from each other? plz, answer ILL GIVE BRAINLIEST!!!!!!!!!!!!!!!!!!
100 POINTS TOOOOOO!!!!!!
Answer:
543
Step-by-step explanation:
From 0 to 535 is a distance of 535 to the right
From 0 to - 8 is a distance of 8 to the left
-----------------------
535 + 8 = 543
BRAINLY if correct
Gerald buys a bag of 7,500 assorted beads online. A random sample of 150 beads contains 17 red beads. Predict the number of assorted beads that Gerald bought.
500 red beads
7,350 red beads
850 red beads
167 red beads
Answer:
C : 850 Red Beads
Step-by-step explanation:
you do 7500/150 which is 50.
you times 17 by 50 since you know in every 150 beads 17 are reds so you get 850 red beads and you times 150 by 50 and get 7500 so in 7500 you get 850 red beads.
ʕ•ᴥ•ʔ
Find the area of the circle below. Use 3.14 for pi
Answer:
Es igual a 28,26 centímetros2.
Step-by-step explanation:
please answer ASAP (middle school) (probability)
PLEASE HELP!!!!!
A place mat includes a border of a fixed width around the place mat. The total area of the place mat to include the border is represented by the expression (4+2x)(6+2x).
What does the variable x represent?
• the width of the border
• the width of the place mat, including the border
• the width of the place mat only
• the area of the place mat only
The variable x represent the width of the border. Option A is correct.
What is the area?The space filled by a flat form or the surface of an item is known as the area.
The number of unit squares that cover the surface of a closed-form is the figure's area. Square centimeters is the unit of the area.
The total area of the place mat to include the border is represented by the expression;
(4+2x)(6+2x).
Total area = Surface area+inner area
Hence, option A is correct. The variable x represent the width of the border.
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Tickets to a school musical cost $7.25. The amount received from ticket sales is $833.75. How many tickets were sold?
Answer: 115
Divide 833.75 by 7.25
tihs is number 1 out of 15
Answer and Step-by-step explanation:
The answer is 20 - x.
It is asking for the difference (the solution of when two numbers subtracting from one of the other) of 20 and x, and since 20 is said first, it gets subtracted by x.
#teamtrees #PAW (Plant And Water)
Lawanda pours a can of mixed vegetables into a pot on the stove. There are 82 green beans, 13 carrots, and 23 lima beans. Without looking, she reaches in with her spoon and pulls one vegetable. What is the probability that she will spoon out a carrot?
Answer:
A
Step-by-step explanation:
Please Help :( Due tomorrow 5/21
1. Point A is on a number line halfway between -20 and -4. Point B is halfway between point A and 0. What integer is represented by point B?
2. Nine Celsius temperatures are recorded in a lab. The middle temperature is 0°C. What is the maximum number of temperatures that could be represented by negative numbers?
Answer:
1. point A is -8 and 0 is -4
Step-by-step explanation:
Which ratio is equivalent to 33:11?
Answer:
3:1
Step-by-step explanation:
33 / 11 = 3
11/ 11 = 1