Answers
Answer:
C
Step-by-step explanation:
The quadratic regression equation that fits these data is [tex]\rm y=2.13x^2+0.13x+6.39[/tex].
What is the quadratic regression equation?A quadratic regression is the process of finding the equation of the parabola that best fits a set of data.
The quadratic regression equation that fits these data is;
[tex]\rm y=2.13x^2+0.13x+6.39[/tex]
Check for the values of x and y;
When the value of x = -4 the value of y is;
[tex]\rm y=2.13x^2+0.13x+6.39\\\\x=-4\\\\\rm y=2.13(-4)^2+0.13(-4)+6.39\\\\y=34.13-0.52+6.39\\\\y=40[/tex]
Hence, the quadratic regression equation that fits these data is [tex]\rm y=2.13x^2+0.13x+6.39[/tex].
Learn more about quadratic equation here;
https://brainly.com/question/17018837
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Related Questions
In the finals of a singing contest at Greenvale Middle School, 300 students vote on which
contestant they liked best. The circle graph shows the results of the vote. How many
more votes did Gamba get than Ahmed?
Answers
Answer:
Gamba obtained 75 more votes than Ahmed.
Step-by-step explanation:
Given that in the finals of a singing contest at Greenvale Middle School, 300 students voted on which contestant they liked best, and Gamba got 35% of the votes while Ahmed got 10%, to determine how many more votes did Gamba get than Ahmed the following calculation should be performed:
(300 x 0.35) - (300 x 0.10) = X
105 - 30 = X
75 = X
Thus, Gamba obtained 75 more votes than Ahmed.
In a recent survey in a Statistics class, it was determined that only 70% of the students attend class on Fridays. From past data it was noted that 88% of those who went to class on Fridays pass the course, while only 20% of those who did not go to class on Fridays passed the course. a. What percentage of students is expected to pass the course? b. Given that a person passes the course, what is the probability that he/she attended classes on Fridays? (Hint: the above problem is based on conditional probability concept and the Bayes theorem)
Answers
Answer:
a) 67.6% of students is expected to pass the course
b) 0.9112 = 91.12% probability that he/she attended classes on Fridays
Step-by-step explanation:
Conditional Probability
We use the conditional probability formula to solve this question. It is
[tex]P(B|A) = \frac{P(A \cap B)}{P(A)}[/tex]
In which
P(B|A) is the probability of event B happening, given that A happened.
[tex]P(A \cap B)[/tex] is the probability of both A and B happening.
P(A) is the probability of A happening.
a. What percentage of students is expected to pass the course?
88% of 70%(attended class)
20% of 100 - 70 = 30%(did not attend class). So
[tex]p = 0.88*0.7 + 0.2*0.3 = 0.676[/tex]
0.676*100% = 67.6%
67.6% of students is expected to pass the course.
b. Given that a person passes the course, what is the probability that he/she attended classes on Fridays?
Here, we use conditional probability:
Event A: Passed the course
Event B: Attended classes on Fridays.
67.6% of students is expected to pass the course.
This means that [tex]P(A) = 0.676[/tex]
Probability that passed and attended classes on Friday.
88% of 70%
This means that:
[tex]P(A \cap B) = 0.88*0.7 = 0.616[/tex]
Then
[tex]P(B|A) = \frac{P(A \cap B)}{P(A)} = \frac{0.616}{0.676} = 0.9112[/tex]
0.9112 = 91.12% probability that he/she attended classes on Fridays
.
* 6 cupcakes for $14
* 12 cupcakes for $30
* 24 cupcakes for $54
The unit price for the 6 cupcakes is
The unit price for the 12 cupcakes is
The unit price for the 24 cupcakes is
The lowest unit price is for
Answers
Answer:
≈$2.33$2.50$2.2524 cupcakes/$54Step-by-step explanation:
Answer:
$2.33
$2.50
$2.25
24 cupcakes/$54
Step-by-step explanation:
work out 4/5 - 1/5
work out 9/11 +5/11
work out 3/4 + 1/8
Answers
Answer:
4/5-1/5=6.0
9/11+5/11=1.27
3/4+1/8=0.875
A number is added to 12, and the result divided by 2. the answer is the same as you get by subtracting the number from 4. what is the number?
Answers
Answer:
1 1/3
Step-by-step explanation:
(x+12)/2 = 4-x
Step 1, multiply both sides by 2 to remove that pesky fraction. x+12 = 8–2x
Step 2, add 2x to both sides to remove x from the right hand side. 3x+12 = 8
Step 3, minus 12 from both sides, removing it from the left hand side. 3x = -4
Step 4, divide by 3. x = 1 1/3
Answer:
the number is 20
Step-by-step explanation:
Equation: let x be the missing number
x + 12 ÷ 2 = x - 4
first step: multiply 2 on both sides to get rid of the division
x + 12 ÷ 2 × 2 = x - 4 × 2
x + 12 = 2x - 8
second step: add 8 on both sides:
x + 12 + 8 = 2x - 8 + 8
x + 20 = 2x
third step: subtract x on both sides:
x - x + 20 = 2x - x
20 = x
to check: substitute 20 for x
x + 12 ÷ 2 = x - 4
20 + 12 ÷ 2 = 20 - 4
32 ÷ 2 = 16
16 = 16
Which of the following sets represents continuous data?
A. {1, 2, 3, ...)
B. (4,7)
C. {5, 13, 16, 20, 30)
D. {..., -9, -6, -3}
Answers
Answer:
option A is your answer okk
Given APQR and ASTU, what is mZQ PLEASE HELP
Answers
Answer:
∠Q = 64°
Step-by-step explanation:
The triangles are similar because 4/14 = 8/28 = 6/21, all = 2/7
∠R = 46° was given
∠P = 70° because it corresponds to ∠S
since the sum of all the interior angles of a triangle = 180° then:
∠Q = 180° - 46° - 70° = 64°
if the price of a sweater is marked down from $80 to $68, what is the percent markdown?
Answers
Answer:
35%
Step-by-step explanation:
$28 less.
28 is 35% of 80. (28/80 = 0.35 which is 35%)
the percent markdown is 35%
Which expression is equivalent to -6(3x-3)?
O 2x+4
2
-3X-6
O 3 6
-18.X+ 12
- 15x+4
Answers
PLEASE HELP ME!!
Use the given values of n and p to find the minimum usual value μ - 2σ and the maximum usual value μ + 2σ.
n = 290, p = 1/4
Answers
20 POINTS! WILL AWARD BRAINLIEST! Which equations have only one root
Answers
Answer:
its option a i and ii plz mark me branliest
HELLPP DUE BY 1pm PACIFIC HELLPP ASAP
Answers
Answer:644.355
i tried ok
Step-by-step explanation:
I got you!
Since you dont know how many individual songs he wrote, we will represent that as x. Now, to find the total amount spent on buying "x" individual songs, you would have to multiply that by the 1.29$ it costs. Therefore, with the inclusion of the 9.99$ from the album, your equation is:
50 = 1.29x + 9.99
Plz help!!!!!!! Image
Answers
Answer:
the third one is correct
If an arithmetic progression satisfies U4=7 , U8=15 .Find U10
Answers
Answer:
U10 = 19
Step-by-step explanation:
The sequence is [tex]Ux=(x*2)-1[/tex]
x is the coefficient to U.
So, [tex]U10=(10*2)-1[/tex]
Which means [tex]U10=20-1[/tex]
Which means [tex]U10=19[/tex]
And there is your answer.
Hope this helps. Have a nice day.
Are Brainy tutors still a thing if not I’m gonna fail algebra
Answers
Answer:
I guess they are
Step-by-step explanation:
Answer:
yes they are but i cant get a hold of them srry can i have brainliest
Step-by-step explanation:
3^x=2 solve for x without using calculating utility?
Answers
x= log 3^2
x= log2/log3
x= 0.630930
Please help me I always sleep late doing homework and I do not want to today begging ya. You don’t have to do 1,2,3
Answers
Answer: 5, 18, 20, 25, 27, 35, 38, 40, 48, 60, 90
Step-by-step explanation: Count lol
Anyone can help with this
Answers
Answer:
C
Step-by-step explanation:
Notice how C is the only function that is quadratic. If you expand (2x-1)^2, you get 4x^2-4x+1. Since x is raised to the power of two, it isn't linear, but quadratic.
Answer:
C
Step-by-step explanation:
i used photomath and C was not the linear one!
Given: binom(119, 0.57)
What is the Expected Value?
Answers
Answer:
The expected value, or mean, of a binomial distribution, is calculated by multiplying the number of trials by the probability of successes. For example, the expected value of the number of heads in 100 trials of head and tales is 50, or (100 * 0.5)
Which two values are solutions of the inequality r≥6?
Select one:
r = 6, r = 9
r = −7, r = −8
r = 3, r = −10
r = 4, r = −2
Answers
Answer:
r = 6
r = 9
Step-by-step explanation:
Find the ratio a : b , if it is given that ...
5a +3b =6b
Answers
Answer:
3:5
Step-by-step explanation:
5a + 3b = 6b
5a=6b-3b
5a=3b
a/b= 3/5
a:b=3:5
Page 491 #s 6-8 6) Find the area of a square with side length 74 yard
Answers
Answer:
A=5476
Step-by-step explanation:
HOPE I HELPED
need help figuring this out
Answers
Answer:
think it is d
Step-by-step explanation:
Which mode of transportation did you choose? Why?
Answers
Answer:
land
Step-by-step explanation:
because,bus are more comfortable and easier other transportation are dangerous than land transportation ❤️
hope i helped u
Pls help it’s about angles
Answers
90-66=24
Sorry if it’s wrong
what is the order from least to greatest(38%,3/8,0.4,1/3,41%,0.33)
Answers
After a birthday only 1/4 cake ramains what fraction is equivalent 1/4
Answers
Answer:
2/8, 3/12, 4/24, 5/20, 6/24, 7/28, 8/32, 9/36, 10/40, etc.
Step-by-step explanation:
Can someone help me!!!!
Also dont put the answers: 201.06 or 131.1 bc I've tried those. :)
Answers
Answer:
870.4 maybe???
Step-by-step explanation:
Answer:
16cm=200.96
12cm=113.04
Simplify:
Camilla goes to the super market and buys two apples. each apple is $1.75. Camilla has $5.00 left. write an expression to represents this problem. Don't forget to use a variable!
Answers
Answer:
[tex] \huge \boxed{ \boxed{t - 3.5 = 5}}[/tex]
Step-by-step explanation:
to understand thisyou need to know about:equationlet's solve:a apple costs 1.75
2 apple costs 1.75×2=3.5
let her total money be t
according to the question
t-3.5=5A relation R on a set A is defined to be irreflexive if, and only if, for every x ∈ A, x R x; asymmetric if, and only if, for every x, y ∈ A if x R y then y R x; intransitive if, and only if, for every x, y, z ∈ A, if x R y and y R z then x R z. Let A = {0, 1, 2, 3}, and define a relation R2 on A as follows. R2 = (0, 0), (0, 1), (1, 1), (1, 2), (2, 2), (2, 3) Is R2 irreflexive, asymmetric, intransitive, or none of these? (Select all that apply.) R2 is irreflexive. R2 is asymmetric. R2 is intransitive. R2 is neither irreflexive, asymmetric, nor intransitive.
Answers
Answer:
OMG IM ON THE SAME QUESTION
Step-by-step explanation: