Which of the following quadratic regression equations best fits the data shown below?

Answers

Answer 1

Answer:

Answer:

Step-by-step explanation:

In order to do this, you have to know how to use your calculator's regression equation function.

First enter in the data. Hit "stat" then 1:Edit and enter all the x values into L1. After each value, hit enter. When you're done with the x list, arrow over to L2 and enter in all the y-values. If there are already values there you need to clear, arrow up to highlight L1, hit "clear", then "enter" and the values will disappear. Do that for both lists if you need to.

After the data is listed in L1 and L2, hit "stat" again and arrow over to "Calc". Hit 5:QuadReg. If you have a TI 83, your equation will be there for you. If you have a TI 84, you'll need to arrow down to "calculate" to get the equation. Regardless, the equation is

$y=3.48x^2+1.22x+3.44$ , the last choice in your options.

Answer 2

Answer:

Answer: D

Becasye I got it from him

Related Questions

What is the product of -9 and -15? 135 -135 -24 24
Please help me as soon as possible
Ariel deposited $100 into a bank account. Each friday she will withdraw 10% of the money in the account to spend. Ariel thinks her account will be empty after 10 withdrawls. Do you agree explain.
9h + 2 19. Given the formula E = IR what is the formula for R? a. R = I ÷ E b. R = EI c. R = IE d. R = E ÷ I
the ratio of the lenghts of the corresponding sides of two rectangles is 8:3. the area of the larger rectangle is 320 ft2. what is the area of the smaller rectangle

What is the lateral surface area of a cube with side length 9 cm?

Answers

$a=9cm\n\nsurface\ area:A_S=6a^2\to A_S=6\cdot9^2=6\cdot81=486\ (cm^2)$

Find the equation of a line perpendicular to y - 12 = 2x – 8 that passes through the point (2, 3). (answer in slope-intercept form)

Answers

Hello,

The slope of y-12=2x-8 is 2 thus the perpendicular will have as slope -1/2

y-3=-1/2(x-2)
or y=-x/2 + 4 is the equation searched.

In a small company of 10 people the salaries are as follows: 5 people earn $25,000, 3 earn $27,000, 1 earns $34,000, and the owner earns $60,000 What is the mean and standard deviation (to the nearest dollar) of their salaries?Mean salary: $________a0

Standard Deviation: $_________a1

Answers

Answer:

The mean is 30000 and standard deviation is 9746.79.

Step-by-step explanation:

Formula of mean

$Mean=\bar{x}=(\sum x_i)/(n)$

Formula of standard deviation:

$S.D.=\sigma=\sqrt{\frac{\sum{(x-\bar{x})^2}}{n}}$

Using the below table.

$Mean=\bar{x}=30000$

$S.D.=\sigma=9746.794345\approx 9746.79$

Therefore the mean is 30000 and standard deviation is 9746.79.

The mean is 30,000

The standard deviation is 10,893.42

What do you mean by a0 and a1?

Braeden has an income of $85,600 before income tax.The income tax rate is 3.5%. How much will he pay in
income taxes?

Answers

9514 1404 393

Answer:

$2996

Step-by-step explanation:

3.5% of $85,600 is ...

0.035 × $85,600 = $2996

Braeden will pay $2,996 in income taxes.

Easy math problem, please help.O is the center of the circle. Assume that lines that appear to tangent are tangent. What is the value of x?

A. 56
B. 62
C. 248
D. 304