Suppose IQ scores were obtained from randomly selected couples. For 20 such pairs of people, the linear correlation coefficient is 0.939 and the equation of the regression line is y = -11 + 1.14x, where x represents the IQ score of the husband. Also, the 20 x values have a mean of 100.9 and the 20 y values have a mean of 100.9. What is the best predicted IQ of the wife, that the husband has an IQ of 100? Use a significance level of 0.05. The best predicted IQ of the wife is ______. (Round to two decimal places as needed.)

Answers

Answer 1

Answer:

The wife IQ is 103 when the husband IQ is 100.

Step-by-step explanation:

The given equation of the regression line is y = -11 + 1.14x, where x represents the IQ score of the husband.

If the husband IQ is 100 the the wife IQ is

y = -11 + 1.14x,

y = -11 + 1.14(100)

y = -11 + 114

y = 103


Related Questions

Max wants to buy shirts that cost $8 each. He also wants to buy a pair of sneakers for $39. A. Write an inequality that represents the maximum number of shirts he can buy if he has $75

Answers

Answer:

a) $39+8x<75$, b) no, c) at most 4 pairs

Step-by-step explanation:

HELP !!!!!! I need this question to Graduate high school!!! Plzzzz help me

Answers

I’m solving it. I’m solving it

The opposite of 0 please help fast

Answers

Answer: The opposite of 0 is 0

Step-by-step explanation: Hope this help :D

Answer:

0

Step-by-step explanation:

because there is no opposite to 0 so it would just be 0

please give me explanation please please please solve it​

Answers

i hope this was helpful!

If you know the area circle,how can you find its radius use the drop down menus to explain your answer

Answers

Answer:

You divide the diameter by 2 to get the radius.

what is the value of a when we rewrite 8^x as a^-x/9​

Answers

Answer:

[tex]a = \frac{1}{134217728}[/tex]

Step-by-step explanation:

Given

[tex]8^x = a^{-x/9}[/tex]

Required

Find a

Take log of both sides

[tex]log(8^x) = log(a^{-x/9})[/tex]

Apply law of logarithm

[tex]x\ log(8) = (-x/9) log(a)[/tex]

Divide both sides by a

[tex]log(8) = -\frac{1}{9} log(a)[/tex]

Multiply both sides by -9

[tex]-9\ log(8) = log(a)[/tex]

Apply law of logarithm

[tex]log(8^{-9}) = log(a)[/tex]

Cancel out log

[tex]8^{-9} = a[/tex]

Rewrite as:

[tex]a = 8^{-9}[/tex]

Apply law of indices

[tex]a = \frac{1}{8^9}[/tex]

[tex]a = \frac{1}{134217728}[/tex]

. Kemone bought 3 pounds of hamburger for $2.56 per pound and a box of cereal for $3.95. How can you calculate how much she spent? *

Answers

Answer:

Step-by-step explanation:

you multiply 2.56 by 3 and add 3.95 an equation would look like y=(3×2.56)+3.95

Identify segment AB all possible ways.
9.
10.
11.
12.
See attached

Answers

9 is A
10. Is B
11. Is c
12 is c to

WILL MARK BRAINLIEST FOR WHO EVER ANSWER IT FIRST

Answers

Answer:

B or D is correct i think it's b most likey

Step-by-step explanation:

An agricultural scientist collected data to study the relationship between the amount of nitrogen added to a cornfield and the number of bushels of
com produced. This is the regression line of the data, where y is measured in bushels of corn and is measured in pounds of nitrogen
y=0.43x + 28.5
What is the meaning of the slope of the regression line?
O A For every 0.43 pounds of nitrogen added to the field, the amount of corn yielded increases by 28.5 bushels.
OB. For every 1 pound of nitrogen added to the field, the amount of corn yielded increases by 0.43 bushels
OC. For every 1 pound of nitrogen added to the field, the amount of corn yielded increases by 28.5 bushels
OD. For every 28.5 pounds of nitrogen added to the field, the amount of com yielded increases by 0.43 bushels.

Answers

Answer:

A

Step-by-step explanation:

Because everything else is wrong trust me

Choose 3 values for x that would make this inequality true. X - 4<20
23
22
0
24
30
100

Answers

Answer:

x<24

x<22

x<23

Step-by-step explanation:

X - 4<20

move 4 and add it to 20

x<24

same goes for the other solutions

someone please help me answer this correctly

Answers

Answer:

13 units is the answer.

Step-by-step explanation:

points (8,-4) and (3,8)

We can rewrite the Pythagorean theorem as,

[tex]d=\sqrt{(x_2 - x_1)^2+(y_2-y_1)^2} \\\\d= \sqrt{(3-8)^2 + (8-(-4))^2} \\\\d=\sqrt{(-5)^2 + (12)^2} \\\\d=\sqrt{25 + 144} \\\\d=\sqrt{169} \\\\d=13\\\\[/tex]

∴ distance between 2 points (8,-4) and (3,8) = 13 units.

Find the surface area of a cylinder with a diameter of 8
yards and a height of 9 yards.

Answers

Answer:

a=326.76 yd^2

Step-by-step explanation:

a= 2pi(d/2)h+2pi(d/2)^2=2pi(8/2)9+2pi(8/2)^2= 326.72564yd^2

The zeroes of the function are

-2 and 0
0 and 4
-2, 0, and 4

Answers

1. x=-2, x=0

So, the equation in factored form would be x(x+2)=0.

2. x=0, x=4

So, the equation in factored form would be x(x-4)=0.

3. x=-2, x=0, x=4

So, the equation in factored form would be x(x+2)(x-4)=0.

Answer:

-2, 0, and 4

second part is none

third part is B

Step-by-step explanation:

I ended up doing it right now

4x + 4/4x - 32
Solve for x

Answers

Answer: 26

Step-by-step explanation:

Angles on a straight line add to 180 degrees, so:

[tex]4x+4+4x-32=180\\\\8x-28=180\\\\8x=208\\\\x=26[/tex]

The value of x is 26.

What is Straight line?

A straight line is an endless one-dimensional figure that has no width

An angle is the figure formed by two rays, called the sides of the angle, sharing a common endpoint.

The angles add up to 180 degrees in a straight line.

The two angles are 4x+4 and 4x-32

4x+4+4x-32=180

Add the like terms

8x-28=180

Add 28 on both sides

8x=180+28

8x=208

Divide both sides by 8

x=26

Hence, the value of x is 26.

To learn more on Straight lines click:

https://brainly.com/question/29223887

#SPJ2

Find the length of each trapezoid.

Answers

Answer:

EF = 27

Step-by-step explanation:

(x + 34)/2 = 2x - 13

x+ 34 = 4x - 26

3x = 60

x = 20

EF = 2(20) -13 = 27

Answer:

11.  EF = 27

Step-by-step explanation:

11.

Median of a trapezoid:

2x - 13 = 20 + x + 14

                    2

2(2x - 13) = 20 + x + 14

4x - 26 = 34 + x

4x - x = 34 + 26

3x = 60

x = 20

EF = 2x - 13

EF = 2(20) - 13

EF = 40 - 13

EF = 27

pls it's due today. ​

Answers

Answer:

43.65 cm squared

Step-by-step explanation:

An angle measures 62° less than the measure of its complementary angle. What is the measure of each angle? (i need two answers please help see the pic)

Answers

Answer:

28° 62°

Step-by-step explanation:

Hope this helps :)

Find the length of the arc. Round your answer to the nearest tenth.

Answers

Answer:

7.1 in

Step-by-step explanation:

Given:

θ = 45°

Radius (r) = 9 in.

Required:

Length of the arc

Solution:

Arc length = θ/360 × 2πr

Plug in the values

Arc length = 45/360 × 2 × π × 9

Arc length = 7.06858347 = 7.1 in (nearest tenth)

Please help!!!
No links

Answers

Answer:

D Not similar

Step-by-step explanation:

For similar triangles the sides are always in proportions.

Here two sides are in proportion but third side isn't. So triangles are not similar.

Bo took a walk. From his house he went 2 blocks west, 7 blocks north, 3 blocks west, 4 blocks south, and 5 blocks east. How far was he from his home?

Answers

He was 20 blocks far

Plz help I only have 5 more minutes to complete this!

Answers

Answer:

The quotient is 83

Step-by-step explanation:

More details in the pic attached:

Answer:

omg i suck at annotating on mac

Step-by-step explanation:

8,3

8,3

6,8,0

2,5,5

0

Brian had 24 class fair tickets to sell he sold 3/4 of the tickets how many tickets did Brian sell

Answers

Answer:

18 is the correct answer hope it helps

please answer and also give a step-by-step explanation

Answers

couldn’t answer i’m kinda blind sorry tho B

A football stadium holds 5000 people.
On a match day z of the stadium is full.
40% of the children are girls.
The ratio of adults to children is 2:3
How many of the children attending are boys?

Can someone plz help me with this

Answers

Answer:

1000 children

Step-by-step explanation:

Find the total units of adults and children = 2 + 3 = 5

5 units = 5000

1 unit = 5000 ÷ 5 = 1000

100% ÷ 5 units = 20% each unit

3 units = 20% x 3 = 60%

Since we all know that 60% of the people are children and 40% of the children are girls...

60 - 40 = 20%

20% = 1000

Tickets Sold Prize Money
100 $23
400 $98
800 $198
1,000 ?
1,200 $298

Answers

223 is the answer its a pattern the pattern is    23 98  98 23 98   the last two digets is what u focus on

is .5 a integer? xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx

Answers

Answer:

No

Step-by-step explanation:

Fractions and decimals are not considered integers

0.5 is not an integer it is a decimal. Only number that can be made by repeatedly adding and subtracting 1 to/from 0 (including 0) are integers can I get a brainliest pleasee

Solve for x
X= ?
Linear Pairs of Angles

Answers

Answer:

x= 24

I hope it's helps you

Helppppp plsssssssssssssssssssssss thanks シ

Answers

Step-by-step explanation:

False. the number is the x coordinate

True. the x-axis is horizontal

False. 0,0 is called the origin.

Which value below is equivalent to the expression 5 – 2(3 + 9) + 4?
A. -23
B. -15
C. 33
D. 40​

Answers

Answer:

40

Step-by-step explanation:

5-2(3+9)+4

5-2(12)+4

3(12)+4

36+4

40

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