Suppose IQ scores were obtained for 20 randomly selected sets of twins. The 20 pairs of measurements yield x overbarequals103.26​, y overbarequals102.05​, requals0.897​, ​P-valueequals​0.000, and ModifyingAbove y with caret equals negative 13.47 plus 1.12 x​, where x represents the IQ score of the twin born first. Find the best predicted value of ModifyingAbove y with caret given that the twin born first has an IQ of 105​? Use a significance level of 0.05.

Answers

Answer 1

Answer

The  value is  [tex]P = 131.07[/tex]

Step -by -step -explanation :

 From the question we are old that

         The sample size is  n =  20  

         The sample mean for the first person of each twin is  [tex]\= x = 100.45[/tex]

         The sample mean for the second person of each twin is  [tex]\= y = 103[/tex]

          The  correlation between both data is  r =  0.908

         The p-value is  p-value  =  0.000

          The  equation  [tex]\^ y = 13.47 + 1.12 x[/tex]

         

Here we are told that x represents  the first person to be given birth to among each twin  

       The value of x  considered is  x = 105

          Generally given that p-value  =  0.000

Then  the  Predicted value of  [tex]\^ y[/tex]  is mathematically represented as

           [tex]P = 13.47 + 1.12 (105)[/tex]

=>         [tex]P = 131.07[/tex]

           


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Anamara has 3 cats. She wanst to feed them an equal amount of food. One bag of cat food has 9 grams of food. How many grams will each cats get?

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Answer: 3 grams

Step-by-step explanation: Each distribution of food must be equal so divide food by amount of cats which is 3 to get 3

Mathmatically 9/3 = 3 grams

Please help ill mark brainliest please, please, please

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Answer: I think its (B) Reflection over the x-axis

Step-by-step explanation: Hope this helps!

Answer:

reflection over the x axis

Step-by-step explanation:

because the line that there reflecting over is the x axis line thats left to right, not y axis which is up and down

hope that helps, have a great day :>

coso + COSB
sino - Sinß
Sino+ Sinß
coso
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Answer:

amm

Step-by-step explanation:

Which matrix represents the system of equations shown?

Answers

Answer:

b.

by relation

[tex] \binom{3x \: \: - 2y \: \: 12}{4x \: \: \: \: - y \: \: \: \: \: 9} \\ eliminate \: the \: unknowns \: (x \: and \: y) \\ \binom{3 \: \: - 2 \: \: 12}{4 \: \: \: \: - 1 \: \: \: \: \: 9} [/tex]

9th grade math help me please and thank you sosomuch

Answers

Answer:

The system is consistent; it has one solutionD

Step-by-step explanation:

A consistent system of equations has at least one solution

The consistent independent system has exactly 1 solutionThe consistent dependent system has infinitely many solutions

An inconsistent system has no solution

In the system of equations ax + by = c and dx + ey = f, if

a = d, b = e, and c = f, then the system is consistent dependent and has infinitely many solutionsa = d, b = e, and c ≠ f, then the system is inconsistent and has no solutiona ≠ d, and/or b ≠ e, and/or c ≠ f, then the system is consistent independent and has exactly one solution

In the given system of equations

∵ -2y + 2x = 3 ⇒ (1)

∵ -5y + 5x = 12 ⇒ (2)

→ By comparing equations (1) and (2)

-2 ≠ -5

2 ≠ 5

3 ≠ 12

→ By using the 3rd rule above

∴ The system is consistent independent and has exactly one solution

The system is consistent; it has one solution

what is the average number of a question

Answers

Answer:

Overall, across all grades and subjects, the average test question count is 10, the second favorite number of questions is 5. A major contributor in determining the question count for an assignment is its assessment type.

Hope I helped!! If I did please give brainliest because I cant level up without having 1 more ;(

<3 Enjoy,

    Dea

Answer:

that's so ez

Step-by-step explanation:

but idc.......!!!!!!!!

Simplify the expression: 2x + 1 + 7x ​

Answers

Answer: 9x+1

Step-by-step explanation:

2x+7x=9x

Answer:

9x+1

Step-by-step explanation:

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Someone please help me. Thanks!

Answers

The answer is c because you need to multiply both numbers inside the parentheses by the number on the outside
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We cannot see the picture

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Answers

Answer:

The velocity of light, v, is the product of its wavelength, λ , and its frequency, f. This means that the wavelength is the velocity, v, divided by the frequency, f.

Wavelength of light = velocity of light / frequency of light

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f = frequency of light, Hz

Step-by-step explanation:

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Answers

Answer:

b

Step-by-step explanation:

not exactly "impossible" my good lad

Answer:

B

Step-by-step explanation:

of course, the even fractions are not irrational.

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10. A local
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Answers

Answer:

39.7%

Step-by-step explanation:

(actual value - estimated value) / actual value

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pls help me answer this it is due today sorry if it looks wierd if correct I'll make Brainliest!!!!​

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Answer:

D. y = 0.8x + 9.25

Step-by-step explanation:

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Answer

D hope this helps

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*Arianators Know*

Normal Brainly kid: What's 34 + 35?

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(ariana grande) teehee can u stay up all night me to the daylight 34 35!!!!

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Answer:

The answer is A.

Step-by-step explanation:

This is because the Triangle is being rotated counter clockwise 90 degrees, then reflected over the Y axis.

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Answers

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Step-by-step explanation:

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Answers

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Step-by-step explanation:

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Answers

Answer:

Please check the explanation.

Step-by-step explanation:

We know that the domain of a function is the set of input or argument values for which the function is real and defined.

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We also know that the range of a function is the set of values of the dependent variable for which a function is defined.

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4         4

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Answers

Answer:

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          1:2

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Brainiliest

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Answer:

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Step-by-step explanation:

160 is the only one that works if u rplace x with 160.

Answer:

160

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Answers

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Answers

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Answer:

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Step-by-step explanation:

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Answers

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Step-by-step explanation:

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Answers

Answer:

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Step-by-step explanation:

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Help please I’ll give you brainlyst

Answers

I’m going to have to stick with company A.
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