A study revealed a strong, linear, positive association between the amount of shampoo used and the length of hair. Another study revealed a strong, linear, positive association between amount of conditioner used and the length of hair. When the data were combined, the association became negative. What is this an example of?

Answers

Answer 1

Answer:

Step-by-step explanation:

B

Answer 2

Answer:

Simpson's Paradox

Step-by-step explanation:


Related Questions

The distance an object travels is determined by how fast it goes and for how long it moves. If an object’s speed remains constant, the formula is d = r • t, where d is the distance, r is the speed, and t is the time.
If you drive at 50 miles per hour for 5 hours, how far will you have traveled?
a. 200 miles
b. 10 miles
c. 250 miles
d. 300 miles

Answers

Answer is 250 50 times 5 will get u the answer

Please help with my Probability Sheet. Integrated Math 2. Spin or Roll.

Answers

Answer:

I can't see the pdf

Step-by-step explanation:

please put the image up

Give an example of two events that are not mutually exclusive.​

Answers

Answer: in the case of rolling a die the event of getting an 'odd-face' and the event of getting 'less than 4' are not mutually exclusive and they are also known as compatible event. The event of getting an 'odd-face' and the event of getting 'less than 4' occur when we get either 1 or 3.

Step-by-step explanation:

also turning ur body (left and right)

Toss a thumbtack on a hard surface 50 times. How many times did it land with the point up? What is the approximate probability of landing up?

Answers

Answer:

25% because there is 4 side causing it to be 1/4 chance

Step-by-step explanation:

It is 50:50 cuz it might or it might not

I need helping finding an equation for this table and the function.

Y
1
4
16
64
256
1024
4096

X
1
2
3
4
5
6

Find the equation and function and give a reason

Answers

each of the y values are being multiplied by 4

Need this Slope Answer! Help please.

Answers

Answer:

0.5

Step-by-step explanation:

I think it’s 0.5 slope is not very difficult

A factory can produce 60 TVs in 7 days. How long does it take to finish 400 TVs?

Answers

Answer:

57.12, but being precise and accurate, you might wanna put 58.

Step-by-step explanation:

So, there's this guy, his name is calculator.

For f(x)=5x+1. Find f(-4)

Answers

Answer:

-19

Step-by-step explanation:

f(x)=5x+1

F(-4) - substitute -4 as the x

F(-4)=5(-4)+1

F(-4) = -20 + 1

f(-4) = -19

Round 43.586 to the nearest tenth. Pleaseee help ASAP

Answers

Answer:

43.6

Step-by-step explanation:

I hope this helps you :)

Answer:

43.59

Step-by-step explanation:

43.59 because it is

You are given space that limit as h rightwards arrow 0 of fraction numerator g (3 + h) - g (3)/h = 7 and g (3) = 9. Find m and b so that the tangent space line of g (x) at x = 3, y = m x +b.

Answers

Answer:

m = 7 and b = -12 therefore y = 7x - 12

Step-by-step explanation:

From the question we are given the first derivative of the function g to be 7, and it is known that the first derivative of a function is the slope, therefore the slope, m = 7.

Since we are looking for 'b' at x = 3 and we know that our slope is 7, we have:

g(3) = 7*3 + b. We are given g(3) = 9 so we have:

9 = 21 + b and b = -12.

Therefore, m = 7 and b = -12 and the equation of the line is y = 7x - 12.

Complete the following statement.
When converting a decimal to a fraction, the digits to the right of the decimal point become th
of the
fraction.
numerator
denominator
NEXT QUESTION
READ NEXT SECTION
ASK FOR HELP
TURN IT IN

Answers

Answer:

it becomes the numerator

Step-by-step explanation: i read it in my lesson

Find the surface area of the figure.
5 m
5 m
4 m
6 m
10 m​

Answers

Answer:

258m

Step-by-step explanation:

This is a guess, if you could, please post your answer again, but this time click the paperclip icon, and add a screenshot of the figure!

x^2+ bx +c= (x + 3) (x + m)

Answers

Answer:

x= c-3m/m+3-b

Step-by-step explanation:

use Math   way

Step-by-step explanation:

(b-m-3)x-3m+c =0

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hope u got it!!

If you score higher than 90% on the test, you'll get an A. If you get an A, you can celebrate.
You scored a 92% on the test. What can you conclude using the Law of Syllogism?

Answers

Answer:

  You'll get an A and you can celebrate.

Step-by-step explanation:

The hypothesis for the first conditional is met, so we can assume the conclusion is true: you'll get an A.

That conclusion satisfies the hypothesis of the second conditional, so we can assume its conclusion is true: you can celebrate.

Taken together, we can assume ...

  You'll get an A and you can celebrate.

Choose the fraction that is greater than 5/9.

Answers

Answer:

6/9

Step-by-step explanation:

What is the measure of the indicated angle?
120°
?

Answers

i think the answer is 180

It takes 3 ¾ spoons of chocolate syrup to make 2 ½ gallons of chocolate milk. How many spoons of syrup would it take to make 5 gallons of chocolate milk?

Answers

Answer:

I think it is 7.5 (7 1/2)

Step-by-step explanation:

3.75 divided by 2.5= 1.5

1.5 * 5= 7.5

30 points to HELP PLEASE and THANK U
A wheel of a child's bicycle has a circumference that is 50% of the circumference of a child's mountain bicycle wheel. The child's bicycle wheel has a circumference of 37.7 inches. a. What is the radius (to the nearest inch) of the child's bicycle wheel? of the child's mountain bicycle wheel? b. The child's mountain bicycle wheel takes 2 seconds to make 3 revolutions . How fast(to the nearest inch per second) is the bicycle moving?

Answers

Answer:

36960in per minute

Step-by-step explanation:

Answer:

a) 6 inchesb) 113 inches per second

Step-by-step explanation:

Let the child bicycle wheel radius be x

Then its circumference is

C = 2πx

a) Solving for x

37.7 = 2*3.14xx = 37.7/6.28x = 6.0 in

b) Mountain bicycle has twice the circumference of a child bicycle

In 2 seconds it makes 3 revolutions

It makes the distance of

d = 3*2*37.7 = 226.2 inches in t = 2 seconds

Speed = d/t

Speed is:

226.2/2 = 113 inches/second

 

write the recuring deciml 0.15 as a fractions simplest form

Answers

15/100 (15 over 100)
15/100 = 3/20 =0.15

what is the reflection of (5, -3.5) across x-axis

Answers

Answer:

(-5,-3.5)

Step-by-step explanation:

Answer:

When you reflect a point across the x-axis, the x-coordinate remains the same, but the y-coordinate is transformed into its opposite (its sign is changed). If you forget the rules for reflections when graphing, simply fold your paper along the x-axis (the line of reflection) to see where the new figure will be located.

Step-by-step explanation:

The decline of salmon fisheries along the Columbia River in Oregon has caused great concern among commercial and recreational fishermen. The paper 'Feeding of Predaceous Fishes on Out-Migrating Juvenile Salmonids in John Day Reservoir, Columbia River' (Trans. Amer. Fisheries Soc. (1991: 405-420)) gave the accompanying data on
y= maximum size of salmonids consumed by a northern squaw fish (the most abundant salmonid predator) and
x= squawfish length, both in mm.
Use the following statistics to give the equation of the least squares regression line.
x=524.880,
y=413.975,sx=12.251,sy=12.300,
r=0.9562
options:
a) ^y=0.960xâ89.910
b) ^y=0.960x+89.910
c) ^y=â89.910x+0.960
d) ^y=0.952x+89.910
e) ^y=0.952xâ89.910
f) None of the above

Answers

Answer:

the correct answer is not there. here it is:

^y = 0.960x - 89.910

Step-by-step explanation:

we have regression line equation as:

^y = a+bx

we have the following details available

x = 524.88

y = 413.975

Sx = 12.251

Sy = 12.300

r = 0.9562

we have to find values of a and b

b = rSy/Sx

= 0.9562(12.3)/12.251

= 11.76126/12.251

= 0.960

a = y - intercept

= 413.975-0.96(524.88)

= 413.975-503.8848

= - 89.9098

a = -89.910

putting these values into the equation, we have:

^y = -89.910 + 0.9600x

which is also

^y = 0.960x - 89.910

What's the answer? please help

Answers

Answer:

it's 3.

Step-by-step explanation:

10-4/5-3

6/2

3..

can someone help please

Answers

Answer:

es

375

Step-by-step explanation:

Use the figure below to solve for X.

Answers

Answer:

the value of x is 45 degree

Answer:

45

Step-by-step explanation:

Step 1:

2x + 55° + x - 10° = 180°            Sum of a Δ

Step 2:

3x + 45° = 180°            Combine Like Terms

Step 3:

3x = 135°      Subtract 45° on both sides

Step 4:

x = 135° ÷ 3     Divide

Answer:

x = 45

Hope This Helps :)

For the following right triangle, find the side length x

Answers

can you send a picture of the problem

A standard showerhead dispenses 50 gallons of water in 20 minutes. At this rate, how many gallons of water will a standard showerhead dispense in 5 minutes?

Answers

Answer:

12.5

Step-by-step explanation:

Answer:12.25

Step-by-step explanation:

11.

April is going to the bakery to purchase donuts and cinnamon rolls for the office personnel. She must purchase at least 30 items. She has collected only $30, so total cost must be no more than $30. If d represents donuts that cost $0.75 each and r represents cinnamon rolls that cost $1.25 each, which system of inequalities can be used to represent the region for the number of donuts and cinnamon rolls April could purchase?

A.d + r ≥ 30
0.75d + 1.25r ≤ 30

B. d + r ≥ 30
1.25d + 0.75r ≤ 30

C. d + r ≤ 30
0.75d + 1.25r ≥ 30

D. d + r ≤ 30
1.25d + 0.75r ≥ 30
Please answer quickly :)

Answers

Your answer is B!!!! :D

The system of inequalities that can be used to represent the region for the number of donuts and cinnamon rolls April could purchase is $0.75d + $1.25r  ≤ $30

April cannot spend more than $30. Thus, the inequality sign that would be used is(the less than or equal to sign).

April wants to purchases two items, cinnamon rolls and donuts. The donuts cost $0.75 per dollar and cinnamon rolls cost $1.25 per dollar.

The total amount April can spend on donuts = $0.75 x d = $0.75d

The total amount April can spend on cinnamon rolls = $1.25 x r = $1.25r

The sum of $0.75d and $1.25r has to be less than $30

This can be represented with this inequality: $0.75d + $1.25r  ≤ $30

A similar question was solved here: https://brainly.com/question/18649886?referrer=searchResults

The tailor determines that the cost of material varies directly with the amount of material. The cost is $42 for 14 yards of material. What is the cost for 70 yards of material?

Answers

Answer:

[tex]the \: cost \: for \: 70 \: yards \: of \: material \: is : \\ \: \$210.[/tex]

Step-by-step explanation:

[tex]let \: the \: cost \: of \: material \: be \to \: c_{m} \\ let \: the \: amount \: of \: material \: be \to \: a_{m} \\ then \: the \: expression \: is: \\ c_{m} \: \alpha \:a_{m} \\ c_{m} \: = k a_{m} \\ if \: c_{m} = 42 \: and \:a_{m} = 14 \\ then \: \to \\ k = \frac{c_{m} }{a_{m}} = \frac{42}{14} \\ k = 3 \to \: this \: is \: the \: variation \: constant. \\ when \: a_{m} = 70 : \: then \to \\ c_{m} = k a_{m} = 3 \times 70 \\ \boxed{ c_{m} = \: 210}[/tex]

♨Rage♨

PLEASE HELP!! Find the market equilibrium point for the following demand and supply equations

Answers

9514 1404 393

Answer:

  (p, q) = (16, 20)

Step-by-step explanation:

You can add the two equations together to make one from which q can be eliminated:

  (4p) +(3p -q) = (-q +84) +(28)

  7p -q = -q +112 . . . . simplify

  7p = 112 . . . . . . . . . . add q

  p = 112/7 = 16

Using this value in the second equation, we get ...

  3·16 -q = 28

  48 -28 = q = 20 . . . . . add q-28

The equilibrium point is (p, q) = (16, 20).

What does m equal ? Please help I need this turned in by tomorrow.

Answers

Answer:

gnilr

Step-by-step explanation:

Answer:

M equals 1.......... .

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Each intersection has two stoplights, plus one additional stoplight for each lane a. a 1 lane road has three stop lights at each intersection b. a 2 lane road has four stop lights at each intersection c. a 3 lane road has five stop lights at each intersection 10. Work days are 8-hour days 11. All workers are paid $25 per hour12. Crew members can complete an amount of work in a specified time according to the equation below: crewMember = 50 . miles . lanes/days Test Data Test #1 Given Inputs Length of road project (miles) : 2.75 Number of lanes 3Depth of asphalt (inches) 12 Days to complete project 30Expected Output - Amount of materials needed === Truckloads of Asphalt : 7841 Stoplights : le Conduit pipes : 605 Crew members needed : 14 = Cost of Materials ============ Cost of Asphalt : $7841000.ee Cost of Stoplights : $250000.00 Cost of Conduit pipes : $302500.ee Cost of Labor : $84882.ee - Total Cost of Project - Total cost of project : $8477500.ee PLEASSSS PLEAS HELPPPPP Use the function f ( x ) = 2 5 x to fill out the table. x f(x)-2 ___-1 ___0 ___1 ___2 ___ An ant climbs to the very end of the second hand on a wall-mounted clock at exactly 9:15:00. The second hand is 13.5 cm long. When the time is exactly 9:17:30, (a) what distance did the ant travel? (b) What is the ants displacement at this time? 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