MATHEMATICS COLLEGE

Use cubic regression to find afunction that fits the following
points.
(1,-1), (2,-13), (3,-45),(-1,11)
y = [?]x3+[ ]x2+0 ]x+[ ]

Answers

Answer 1
Answer:

The cubic regression function of the points (1,-1), (2,-13), (3,-45), (-1,11) is y = -2x³ + 2x² - 4x + 3

How to determine the function?

The points are given as:

(x,y) = (1,-1), (2,-13), (3,-45), (-1,11)

A cubic regression function is represented as:

y = ax³ + bx² + cx + d

Next, we determine the cubic function using a graphing calculator.

From the graphing calculator, we have the following coefficients:

  • a = -2
  • b = 2
  • c = -4
  • d = 3

Recall that:

y = ax³ + bx² + cx + d

So, we have:

y = -2x³ + 2x² - 4x + 3

Hence, the cubic regression function of the points is y = -2x³ + 2x² - 4x + 3

Read more about regression functions at:

brainly.com/question/25226042

#SPJ1

Related Questions

Mort is trying to save money to get out of student debt he saves money each month from his paycheck the function below relates money saved x in thousands of dollars to mouth since graduation, y.y=3x-7identifying the slope and intercept and describe what each mean in the context​
Dunno these answers
One basketball team played 30 games throughout their entire season. If this team won 80% of those games, how many games did they win? Enter a numerical answer only.
Write a problem in which $180 would be a reasonable answer​
The multiplicative inverse of – 1 in the set {-1,1}is

Judging on the basis of​ experience, a politician claims that 57​% of voters in a certain area have voted for an independent candidate in past elections. Suppose you surveyed 25 randomly selected people in that​ area, and 18 of them reported having voted for an independent candidate. The null hypothesis is that the overall proportion of voters in the area that have voted for an independent candidate is 57​%. What value of the test statistic should you​ report?

Answers

Answer: z= 1.51

Step-by-step explanation:

Test statistic for proportion is given by :-

z=\frac{p-P}{\sqrt{(PQ)/(n)}}

Where n is sample size ,p is the sample proportion , P Is the population proportion and Q =1 - P.

Given : P=57% = 0.57

Q= 1- P = 1-0.57=0.43

n = 25

p=(18)/(25)=0.72

Test statistic for proportion will be :-

z=\frac{0.72-0.57}{\sqrt{(0.57*0.43)/(25)}}\approx1.51

We should report the value of test statistic z= 1.51

Helpp please with all four questions

Answers

Answer:

Picture 1:

Area of cemicircle 2 π = 6.28 sq.m (approximately)

Total area of figure = 24+6.28= 30.28 sq.m (approximately)

Picture 2:

area of rectangle = 256 sq.m

Area of triangle = 32 sq.m

Total area of figure = 288 sq.m

Picture 3:

Area of top rectangle = 2 sq ft

Area of bottom rectangle = 15 sq ft

Total area of figure = 17 sq ft

Picture 4:

Area of rectangle = 28 sq ft

Area of triangle = 6 sq ft

Area of shaded region = 22 sq ft

Select all the equations where b = 11 is a solution. I need the answer quickly please.​

Answers

Answer:

c

Step-by-step explanation:
The answer is : D and C

Translate the sentence into an inequality.A number w increased by 6 is greater than or equal to 27.

Answers

Answer:

w + 6 ≥ 27

Step-by-step explanation:

A number w is the variable w.

Increased by 6 means being added by 6.

The observation which occurs most frequently in a sample is the mean
​

Answers

Answer: That’s actually mode

Step-by-step explanation:

Mode- the value that appears most often in a set of data.

Median- the middle number in a list of numbers ordered from lowest to highest.

Mean- the total of all the values, divided by the number of values.

Range- the difference between the lowest value and the highest value.

Answer:

mode

Step-by-step explanation:

If 2/3x+1/2y=5 what is the value of 4x+3y

Answers

Final answer:

To find the value of 4x + 3y, the given equation can be solved by clearing the fractions and simplifying the expression. The value of 4x + 3y is 30.

Explanation:

To find the value of 4x + 3y, we need to first solve the given equation for either x or y. Let's solve the equation for x:

2/3x + 1/2y = 5

Multiplying both sides of the equation by 6 to clear the fractions gives us:

4x + 3y = 30

Therefore, the value of 4x + 3y is 30.

Learn more about Solving Equations here:

brainly.com/question/18322830

#SPJ11
Slope=
2.000
2.667
​
=1.333
x−intercept=
4
30
​
=
2
15
​
=7.50000
y−intercept=
−3
30
​
=
−1
10
​
=−10.00000
Other Questions
What is the answer to (2a^4/b^5)^3
Omg help me giving brainlyest!! plus 30 points
Mang Jose plans to fence his rectangular lot before he will plant mushrooms for his mushrooms production business. The perimeter of the lot is 40 meters and the area is 96 square meters.Using the concept of the sum and product of roots of a quadratic equation, how would you determine the length and the width of the rectangular lot? Provide a quadratic equation representing this scenario.Someone help me
A coin is flipped until 3 heads in succession occur. list only those elements of the sample space that require 6 or less tosses. is this a discrete sample space? explain