An experimenter studies vision in low light by

having participants sit in a darkened room for

either 5, 15, or 25 minutes and then testing their

ability to correctly identify 20 objects. (a) What is

the independent variable here? (b) What are the

conditions? (c) What is the dependent variable?

(d) You would use the scores from which variable

to create a frequency distribution?

Answers

Answer 1

Answer:

Independent variable- time spent in the dark room

Dependent variable - number of objects correctly identified

Conditions of the experiment- low light environment and lighted environments

Scores from the independent variable are used to construct the frequency distribution

Step-by-step explanation:

The independent variable is the factor that is being manipulated in an experiment and this time it is the time spent in a darkened room.

The dependent variable is the response variable, in this case, the number of objects correctly identified.

The experimental conditions involved bringing people from a lighted area into a darkened room.


Related Questions

General admission tickets to the fair cost $5 per person. Ride passes cost an
additional $7.50 per person. Parking costs $16 for the family. The total costs for
ride passes and parking was $103.50. How many people in the family attended
the fair?

Answers

$103.50 - $16 = $87.5
total cost of admission and ride pass per person = $5 + $7.50 = $12.50

no. of people in the family = $87.50/$12.50
= 7

PLEASE HELP ME I WILL GIVE YOU BRAINIEST ANSWER

Answers

Answer: What is the question?

Step-by-step explanation: The slope is 1x and the equation is y=x+3

Solve for g: 6 - 2g = 12

Answers

Answer:

g = -3

Step-by-step explanation:

subtract 6 on both sides

-2g = 6

divide by -2

g = -3

Answer:

G=-3

Step-by-step explanation:

I have used an online algebra calculator to check my answer against and I got the answer g= -3 both times so I am 100% positive that the answer is correct.

PLEASE MARK BRAINLIEST  

You need exactly 47 bottles of water. You don’t want to buy more than you need, but you want the least expensive way. List the best way to buy exactly 47 bottles of water.

GIVING 10 POINTS PLZ DO QUICLY

Answers

Answer: That would be 1 case  + 112 pack + 16 pack +  5 singles

Step-by-step explanation:

Willy Wonka has x chocolate bars in his factory. He gives one third of the chocolate bars to Charlie, and eats one half of the remaining chocolate bars. If he is left with 90 chocolate bars in the factory, what is the value of x?

Answers

Answer: The value of x= 270

Step-by-step explanation:

Given: Willy Wonka has x chocolate bars in his factory.

Chocolates he gave = [tex]\dfrac13 x[/tex]

Remaining chocolates =  [tex]x-\dfrac{x}{3}=\dfrac{2x}{3}[/tex]

Half of the remaining chocolate bars = [tex]\dfrac12\times\dfrac{2x}{3}=\dfrac{x}{3}[/tex]

Now , Chocolate left [tex]x-\dfrac{x}{3}-\dfrac{x}{3}=\dfrac{3x-2x}{3}=\dfrac{x}{3}[/tex]

As per given , [tex]\dfrac x3=90[/tex]

[tex]\Rightarrow\ x=90\times3=270[/tex]

Hence, the value of x= 270

HELP NEEDED HELP! I SUCK at these

Answers

Answer:3:9

Step-by-step explanation: in this problem, it means "pears to apples". The "to" refers to the : . You put the amount of pears (3), then the "to" (:) then the amount of apples (9) to get your answer of 3:9. You can use this to help with other problems like this :D

the answer is 1:3. it would be 3:9 but u can simplify that to 1:3

All of the ingredients are purchased in bulk sizes. The butter comes in 12-cup containers. How many recipes will each container of butter be able to make?

Answers

Answer:

some information is missing, so I looked for similar questions and found the attached image:

since each recipe requires ¹/₂ cup of butter, you are able to make 12 ÷ ¹/₂ = 24 recipes with one container of butter (assuming you have all the other ingredients).

One-half, ¹/₂, is a fraction that can also be written in decimal form as 0.5. Two times ¹/₂ is equal to 1, and similarly, twenty four times ¹/₂ is equal to 12.

ASAP 30 points and BRAINLIEST!! PLS!

Answers

Answer:

[tex]y+3=\frac{2}{5} (x+5)[/tex]

Step-by-step explanation:

First, let's find the slope using the 2 given points and the slope equation.

[tex]m=\frac{y2-y1}{x2-x1}[/tex]

Enter in the points:

[tex]m=\frac{-3--1}{-5-0}[/tex]

Simplify:

[tex]m=\frac{-2}{-5}[/tex]

[tex]m=\frac{2}{5}[/tex]

Now that we have slope we can just use one of the points given. Remember point-slope form:

[tex]y-y1=m(x-x1)[/tex]

I'll use the point (-5,-3) in this case.

So, your solution is

[tex]y+3=\frac{2}{5} (x+5)[/tex]

Hope this helps!

y+1=2/5(x+0) should be it

The cost of fencing a square garden at the rate of Rs.5 per
metre is Rs. 2000. Find the total length of the fence.

Answers

[tex]\huge\underline{\overline{\mid{\bold{\red{ANSWER}}\mid}}}[/tex]

Cost per metre = Rs. 5

Total cost = Rs. 2000

Then total length of the fence = Rs.2000/Rs.5

= 400 metre

Total length of the fence = 400 metre

membership to iron gym cost $40 per month plus $30 registration fee. the monthly cost is deducted automatically from your account. if your starting balance is $350 how many months will you be able to go to the gym before you have to add money to your account?
A. 6
B. 7
C. 8
D. 9

Answers

Answer:

C. 8

Step-by-step explanation:

8 x 40 = 320$ plus 30$ fee is 350

Answer:

8

Step-by-step explanation:

40x 80=320

320+30=350

help 6th grade math i will give brainliest

Answers

I think C I’m NOT for sure but good luck!

There are 7 girls and 13 boys in a class at a Private
School. Of these students, 5 girls and 3 boys are in
the Running club. What percentage of the students
at this Private School are in the Running club?

Answers

Answer:

40%

Step-by-step explanation:

Number of girls = 7

Number of boys = 13

Total students = 7 girls + 13 boys

= 20 students

Running club

Number of girls = 5

Number of boys = 3

Total students in the running club = 5 girls + 3 boys

= 8 students

percentage of the students that are in the Running club = Total students in the running club / Total students

× 100

= 8/20 × 100

= 0.4 × 100

= 40%

Percentage of the students

at this Private School are in the Running club is 40%

Please HELP!! It’s due today

Answers

Answer:

For C all she has to do is look at the chart-

0=0

1=4

2=8

3=12

4=16

Kevin found his average number of text messages sent over three days using the expression below. Which statement best describes the number of the expression?

Answers

Answer:

option C.

Step-by-step explanation:

well the numerator is three. So I don't see why not.

Solve for x. Round your answer to the nearest tenth if necessary.

Answers

Answer:

30.5

Step-by-step explanation:

cos18=29/x --> reciprocate for simplicity : 1/cos18=x/29 --> solve for x

idenify the slope and y-intercept of the function y=-2x+3

Answers

Answer:

The y-interept is 3 and the slope is -2.

Step-by-step explanation:

The y-intercept is always the "b" in y=mx+b

Answer:

Slope:  − 2

y-intercept:  ( 0 , 3 )

Step-by-step explanation:

Please answer quickly

Answers

Answer:

a and c I think if I'm wrong I will try again

Answer:

The first and third option. (I think)

Step-by-step explanation:

Courtney belongs to a health club that charges a monthly fee of $20, plus $85 to join. Write a function to represent her costs. How much has she paid after six months?

Answers

Answer:

Step-by-step explanation:

20x+85=

20(6)+85=

120+85= $205

Need help with this question

Answers

Answer:

D

since 45027/3 is is 15009 and 804597/3 is 268199

I need help someone please

Answers

Answer: [tex]\frac{6}{2}[/tex]

Step-by-step explanation:

1. Use this [tex]\frac{f(b)-f(a)}{b-a}[/tex] to find the average rate of change

2. Average rate of change = [tex]\frac{f(8)-f(6)}{8-6}[/tex]

3. [tex]f(8) = - 4[/tex] and [tex]f(6) = -10[/tex] (To find these you will need to look at the points on the graph. So the points (8,-4) and (6,-10))

4. Replace -4 to f(8) and -10 to f(6)

5. So it will look like[tex]\frac{-4-(-10)}{8-6}[/tex]

6. Solve [tex]\frac{6}{2}[/tex]

HELPPP
Solve the equation
log (2x-3)=2

Answers

Answer:

2.5 or 5/2

Step-by-step explanation:

2x-3=2

2x=5 (both sides plus 3)

x=5/2 or 2.5(divid by 2 on both sides)

Can someone help me with this geometry proof?

Answers

Answer:

Step-by-step explanation:

IM LEARNING THIS TOO LOL

angle one and angle 2 are congruent because of the corresponding angles theorem

angles 2 and 3 are linear pair so 1 plus 2 equals 180

i believe you can use the transitive property

A percent is a blank of proportionality describing the blank of the blank please answer fast

Answers

Answer:

Constant

part

whole

Step-by-step explanation:

From the question, we want to fill in the gaps with the correct vocabulary

The correct wordings in this question is that;

A percent is a constant of proportionality describing the part of the whole

What we are trying to learn here is that a percentage of something is just a value that represents how big that particular value is to the entire whole value

I'll mark you brainiest if you give me the correct answer.​

Answers

Answer:

42b -7.5

I think that's the answer since you are getting a discount which means you are subtracting

An airplane traveled 108 miles in 20 minutes? How long will it take to fly 162 miles?

a
30 min
b
25 min
c
8.1min
d
35 min



omg pls help me im giving like all my points out for this

Answers

Answer:

poopy

Step-by-step explanation:

Tee Hee

Answer:

a, 30 minutes

Step-by-step explanation:

108 divided by 20 is 54

162 divided by 54 is 30

3. Use your graphing calculator to find the value of f'(0) for f(x) = cos(x) - eX. (4 points)

Answers

Answer:

-1

Step-by-step explanation:

Derivative of cos(x)=-sin(x)

Derivative of e^x=e^x

Derivative of cos(x)-e^x= - sin(x)-e^x

plug in 0 to the spots of x and you will get 1 because sin(0) is 0 e^0 is 1

0-1=-1

101.101 correctly written out in words

Answers

Answer:

One hundred one and one hundred one thousandths

Step-by-step explanation:

Answer:

Step-by-step explanation:

basicliy he's saying c

wich is true:)

Allen is in a road trip he has travelled 210 miles in 3 hours if he continues to drive at this rate how many hours will it take him to drive 525 miles

Answers

Answer:

15

Step-by-step explanation:

Answer:

7.5 hours

Step-by-step explanation:

210 dived by 3= 70

So, 525 dived by 70= 7.5 hours

Brainliest?

What is this math please help ASAP

Answers

Answer:

A) A line

Step-by-step explanation:

Notice that:

x-y=4

-y=4-x

y=-4+x

y=x-4

The equation y=mx+b produces a line, so A) a line would be correct

Answer: is a line

Step-by-step explanation:

because  does it have to be a line from a line

Jackson had $53 in his account. He bought a video game. He now has -$12 in his
account. How much was the video game?

Answers

Answer:

$65

Step-by-step explanation:

Add 53 and 12 together to see how much it costed.

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