A researcher conducts an experiment to determine whether moderate doses of St. John's Wort have any effect of memory for college students. For this study, what is the independent variable

Answers

Answer 1

Answer:

Consumption of moderate doses of St. John's Wort

Step-by-step explanation:

A variable that changes without depending on the other variable is called the independent variable and the variable that changes relative to the independent variable is called the dependent variable.

Here the effect of St. John's Wort on memory is being studied.

So, the independent variable would be the consumption of moderate doses of St. John's Wort and the dependent variable would be the effect it has on the person's memory.


Related Questions

Find the value of x in the
following parallelogram:
2x
х
х
2x

Answers

Answer:

60°

Step-by-step explanation:

The sum of the angles in any quadrilateral is 360°. In a parallelogram the sum of neighboring angles is 180°. Therefore:

2x + x = 180°

3x = 180°

x = 60°

The  value of x is 60.

What is properties of parallelogram?Parallel sides define an object.Congruent opposites are present.Angles at opposites are congruent.Consecutive angles on the same side called supplementary angles.A parallelogram is divided into two congruent triangles by each of its diagonals.A parallelogram's diagonals cut each other in half.

Given:

Angles x, x, 2x, 2x.

Using the property of parallelogram, the adjacent angles of parallelogram sum to 180.

x+ 2x= 180

3x= 180

x= 180/3

x= 60

Hence, the value of x is 60.

Learn more about properties of parallelogram here:

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HELPPP I WILL GIVE BRAINLIEST no trolling plz:(

Answers

Answer:

y = 2 x - 8

Step-by-step explanation:

The image below shows proof that the points (4,0) and (7,6) lie on the equation y = 2 x - 8

Hope this helps! :)

Select the correct answer. What is 6 1/3 divided 1/6 equal to? A: 6 B:9 C: 12 D:19 E:38
Again select the correct answer.

Answers

Answer:

The answer would be E:38.

Answer:

38

Step-by-step explanation:

Convert 6 1/3 to a fraction, 19/3

Divide 1/6 by multiplying

19                6

__     X         ___. = 38

3.                  1

PLEASE HELP!! a 90% confidence interval is (35,45) what is the margin of error?
a. 10
b. 9
c. 5
d. 4.5

Answers

Answer: C: 5

Step-by-step explanation:

Just took the test in Ape x

The margin of error will be 5. Option C is corect.

What is the margin of error?

In a random survey sample, a margin of error is a statistical measurement that takes into account the discrepancy between actual and anticipated findings.

The interval is;

(35,45)

Half of the breadth of the total confidence interval is the margin of error.

MOE = (45-35)/2

MOE =5

The margin of error will be 5.

Hence option C is corect.

To learn more about the margin of error refer;

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HELP ASAP

Using a sample of the population that is too small is a:

A . measurement error.
B . interpretation error.
C . data collection error.
D . sampling error

Answers

Answer:

a

Step-by-step explanation:

maybe

You are hiking in the woods at a rate of 3 mph. The function y=3x describes how many miles y you walk in x hours. create an input table with 3 domain values

Answers

Answer:

x ---- y

1 ---- 3

4 ---- 12

6 ---- 18

Step-by-step explanation:

Given

[tex]y = 3x[/tex]

Required

Create a table that represents this scenario

Because x represents time, x can not be negative. So, the domain of x is:

[tex]x \geq 0[/tex]

Assume [tex]x = 1[/tex]

[tex]y = 3 * 1 = 3[/tex]

Assume x = 4

[tex]y=3*4 = 12[/tex]

Assume x = 6

[tex]y=3*6 = 18[/tex]

Hence, the table is:

x ---- y

1 ---- 3

4 ---- 12

6 ---- 18

i need help please ​

Answers

I also need help but mentally lol ok so what I don’t know then Answer but I can tell u what to do so all the numbers under the minutes ur gonna subtract to find the difference in between and then u add the difference and that should be ur answer lmk if u understand

Answer:

kgjyfhtgdxhfc

Step-by-step explanation:

jgvkhjjhgdjfgkh

m2A = 2x
MLB = (3x - 10°
m2C = (110 - x)
help me plzzz

Answers

Answer:

X - B = -2

Step-by-step explanation:

You’re welcome

Is 1666666 continuing a rational number?

Answers

Answer:

yes

Step-by-step explanation:

Answer:

Yes

Step-by-step explanation:

An irrational number is a number that continues on and on but doesn't repeat. Since 166666 repeating does repeat it's a rational number.

HELP!!! ASAP PLEASE The temperature dropped 4 1/2 degrees each hour for 5 hours. By how many degrees did the temperature fall during those 5 hours?

Answers

Answer:

22.5 degrees.

Step-by-step explanation: Just change the half to 0.5 so then times 4.5 times 5.

Answer:

22 1/2

Step-by-step explanation:

I did the quiz

Identify the next three numbers in this sequence

Answers

Your answer is: 72, 66, 264

Explanation: the pattern is multiply by 4 then subtract 6.

Answer:

72,66,264

Step-by-step explanation:

I needddd helppp pleaseeeeee

Answers

answer :

obtuse angle

explanation : no cap

Answer:

D : Obtuse

Step-by-step explanation:

A right angle is 90 degrees.

An acute and obtuse angle are found by looking at the angle between the sides being looked at.

If the angle is GREATER i.e. Angle > 90 , then it is obtuse.

If the angle is LESS THAN i.e. Angle < 90 , then it is acute.

This angle is apparently greater than 90 degrees and therefore is obtuse.

During a thunderstorm, 4
inches of rain fell in 2 1/2
hours. What was the rate of rainfall in inches per hour?

Answers

Answer: 1.6 in per hour

Answer:

hourly rate.

Step-by-step explanation:

As others have noted, it is a simple mathematical division problem (4/2.5) and the average is 1.6 inches per hour.

However, if this is for sizing civil works such as culverts or plumbing storm water drainage systems to mitigate flooding, the highest rate per hour must be known and usually the highest ten minutes rainfall rate expressed as an hourly rate.

For example, if 4.0 inches fell over that 2.5 hours, nothing says that a rain band did not dump 3 inches in the first hour, (3 inches per hour cumulative) or 0.75 inches in a ten minute period (4.5 inches per hour rate), with the remainder of the storm tapering off to lesser rates. So the average is correct, but the peak hour is much more important for practical purposes.

Alex has 48 stickers this is 6 times the number of stickers max has how many stickers does max have

Answers

Answer:

8

Step-by-step explanation:

Answer\

Max has 8 because 48 divided by 6 is 8

Step-by-step explanation:


Joe drove 215 miles in 3 hours. Moe drove 240 miles in 4 hours. Who drove at the fastest rate of speed

Answers

Moe drove the fastest
joe is the one who has the fastest rate because 215 divided by 3 is 71 while moe 240 divided by 4 is 60.

so your answer is joe

mark me brainliest

Identify which of these types of sampling is​ used: random,​ systematic, convenience,​ stratified, or cluster. To determine her stress level​, Charlotte divides up her day into three​ parts: morning,​ afternoon, and evening. She then measures her stress level at 2 randomly selected times during each part of the day.

Answers

Answer:

stratified sampling

Step-by-step explanation:

Note, in the stratified sampling sample method, the population is divided into smaller strata or smaller groups, and then a sample is selected randomly.

In this scenario, the population is a day (24 hours), so dividing the population (day) into three parts; morning, afternoon, and evening represents the various strata. Hence, since Charlotte, the researcher measures her stress level at 2 randomly selected times during each part of the day, she would be using the stratified sampling method.

Which coordinates represent the plotted point? Check all that apply. (StartRoot 13 EndRoot, 146.3 degrees) (StartRoot 13 EndRoot, 213.7 degrees) (negative StartRoot 13 EndRoot, negative 33.7 degrees) (Negative StartRoot 13 EndRoot, negative 146.3 degrees) (−3, 2) (3, −2) (−2, 3)

Answers

Answer:

A, C, E.

Step-by-step explanation:

Just did it.

Answer:

A (square root 13, 146.3 degrees)

C (-squareroot13, -33.7 degrees)

E (-3,2)

Can someone please help mee fast!!​

Answers

Step-by-step explanation:

insta I'd :- itz_anurag_r

anyone msg me on insta plzzz I'm bored at home ❤️

Determine from the balanced chemical reaction if
the derived mole ratio is correct or incorrect.

Answers

It's incorrect. There are 6 moles of NaBr produced for every 3 moles of Na₂S among the reactants (as well as 2 moles of FeBr₃), so the mole ratio of NaBr to Na₂S should be 2 : 1, not 1 : 1.

Which biconditional is false?
F A person is eligible to attend the
club meetings if and only if that
person is a member of the club.
G A person can practice medicine in
the United States if and only if that
person has a valid medical license.
H A person can legally drive a car if
and only if the person holds a valid
driver's license.
J A student participates on the
football tearn if and only if the
student maintains at least a 3
average

Answers

Choice G.

Out of sense, A and C are correct. Choice D seems more logical. For students studying medicine, that doesn’t mean they need a medical license.

Hope this helps! And mark this “brainliest!”

what does nonlinear mean?

Answers

It’s not linear




............

Answer:

Not denoting, involving, or arranged in a straight line.

Step-by-step explanation:

I looked it uo on google

im not SmArT

A bank received a check for two thousand, six hundred nine dollars and seventy-five cents. How is this number written in expanded notation.

Answers

Answer:

Step-by-step explanation:

2,000 600 9 0.7 0.05

6/5 s = -2

whats the answer solve the (s)

Answers

Answer: s= -5/3

Step-by-step explanation: hope this helps!

the answer is 5/3 i hope this help!

At 4 o’clock, Devon called 6 friends to let them know that the weather forecast called for snow. At 6 o’clock, each of those friends called 6 other friends. At 8 o’clock, each of those friends called 6 of their friends.

Answers

Answer:

18

Step-by-step explanation:

I guesss

I am so stressed can someone please help me

It’s 53 points

Answers

Answer:

(3,1)

Step-by-step explanation:

Which is the graph of f(x) = 2(3)x

Answers

The graph of f(x)=2(3)x would look like this

Here I will be giving a Brainiest to a good answer :D

Answers

Answer:

A. F

B. D

C. C

D. E

E. G

F. G

G. D

Step-by-step explanation:

Answer: A. 9/4

              C. -1.75

              D. 1.75

              E -2      

              F-1

              -2 1/2  

Step-by-step explanation:

PLEASE HELP. I need the answer ASAP.

Answers

Answer:

Its D

Step-by-step explanation:

D that’s the answer

PLEASE HELP ME STATTTTTTTTT

A real estate agent has $61 to spend on newspaper ads. Each ad costs $7. After buying as many ads as she can afford, how much money will the real estate agent have left over?

Answers

Answer:

8.714285    repeated

Step-by-step explanation:

Answer:

$5

Step-by-step explanation:

The real estate agent can buy 8 ads for a total of $56. Next you do $61 minus $56 which equals $5. If this answer helped you please consider giving it brainliest.

- •Trix•

( Yes I know my -•Trix• is not my user but its what I would change it to if I could but I can't, please address me as Trix while commenting or talking to me here.)

Solve the inequality​

Answers

Answer:

x<2

Step-by-step explanation:

5x+10>14x-8

18>9x

2>x

x < 2 hope that helps
Other Questions
Cul de las siguientes oraciones no expresa un elemento del arte desarrollado por los pueblos mesoamericanos? * 2 puntos a) Hicieron pinturas de paisajes para decorar sus casas. b) Desarrollaron la pintura y el arte plumario. c) Usaron piedra, madera, barro y obsidiana. d) Desarrollaron la arquitectura y construyeron ciudades y grandes monumentos. The idea of Manifest Destiny meant that A company has 2 photocopy machines. The probability that machine A will breakdown on a given day is 2%. The probability that machine B will break down is 2.5%. What is the probability that both machines will break down on a given day? Give your answer in percent. What is the equation of the line in point-slope form that passes through the points (4, 2) and (1, 6)? Select all statements that are true. 0.55 < 6/9 5.15 = 5 2/6 0.70 < 3 4/5 2.5 < 2 3/4 I'll give you a brainliest if is right or at least shows some effort (thanks & i hope your having a good day)In your own words, explain how a radiosonde can be used to predict future weather conditions in a location. ANSWER ASAPPP I WILL MARK BRAINLIET EXPALIN HOW YOU GOT WHAT U GOT PLSSS what is the slope of the line shown in graph A. -2B. -1C. 1/-2D. 1/2 pls help! will give brainlist!write a story that could describe the expression: - 9 - 5x 1) Veronica's new car requires 12 gallons of gas to run for 100 miles. Thegas' price is $2.20 per gallon. How much will Veronica spend on gas on atrip from Houston to Austin (160 miles). Round your answer to thenearest cent (HUNDREDTH) Dillon pays x dollars to get a haircut. He gives the stylist a25% tip. The expression representing his total cost is x + 0.25xWhich expression is equivalent and why?A. 1.025x because adding 25% to the cost of the haircut is the sameas multiplying the cost by 1.025.B. 1.25x because adding 25% to the cost of the haircut is the sameas multiplying the cost by 1.25.C. 1.25x because adding $25 to the haircut is the same asmultiplying the cost by 1.25.D. x(0.25) because the cost of the haircut can be factored out. We are performing a one-sample z-test about mean. The sample size is 64, the sample mean 56.7, the sample standard deviation is 30, and the testing mean is 60. What is the value of the test statistic? If the graph of the function y=h(x) contains the point (5,-4) then which of the following must be true Express the following situation a a funstion: the population of a school is 800 and is decreasing at a rate of 2% per year a) The relay race is just over one mile long, approximately "1,760" "1" /"4" yards. If Jack and 4 other people each run a leg of the relay, how many yards will each runner run? Justify your answer using an estimation strategy. (3 points)The relay was an exciting event! The eighth graders earned 200 points.b)During the shot put event, Alayna throws the ball 32.45 feet while her teammates throw 28.34 feet, 26.59 feet, and 33.11 feet. Use an estimation strategy to determine about how many total feet were thrown by the team. Describe the estimation strategy you used to solve the problem. (2 points)If the team threw the shot put more than110 feet, then the seventh graders earn 110 points. If not, then the eighth graders earn 110 points. Which grade should be awarded 110 points?Step 5: Adding and subtracting with rational numbersAlex, an eighth grader, and Eric, a seventh grader, need to determine who came closer to their grades state record for the triple jump. Alex jumped 39.85 feet and Eric jumped 37 feet and "1" "1" /"4" inches. Who was closer to the state record if the eighth-grade record is 42.25 feet and the seventh-grade record is 39 feet 3 inches? (2 points)If a seventh grader gets closer to the record-setting jump, then the seventh graders earn 100 points. If not, the eighth graders earn 100 points. Which grade should be awarded 100 points?Step 6: Using the commutative and associative properties of multiplication to simplify multiplication of two rational numbersa)The event coordinator asks you to determine how many students participated in the track-and-field day. The total number of students in seventh and eighth grade combined is 584; "5" /"8" of them are seventh graders and "3" /"8" of them are eighth graders. If "4" /"5" of the seventh graders participated in track-and-field day and "7" /"8" of the eighth graders participated, about how many total students participated? Describe the process you used to find your answer. (4 points)b) Each team earns 1 point for each person who participated in the track-and-field day. Who wins the meetthe eighth graders or the seventh graders? Explain. (2 points)answer if u know Can someone give me a cell-tissue-organ relationship in the skeletal system? the major event to place in cenozic era Which expression is equivalent to 3\sqrt(27) Between Life Sciences and Physical Sciences which should be taken for Psychology in High School ? Who wants to be my freind?