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solmaris [256]
3 years ago
9

. A research study about test anxiety will measure the change in heartrate of the test-taker. The researcher randomly assigns pa

rticipants into one of two groups, either the Test group or the No-test group (where the first group takes a timed test and the second group reads for the same amount of time). What is the operational definition of the independent variable
Mathematics
1 answer:
elena55 [62]3 years ago
5 0

Answer:

Timed test.

Step-by-step explanation:

An operational definition gives exactly what the independent variable means and its mode of measurement. The Independent variable is the variable in a research or experimental study which causes a change in the the measured variable. Hence, the independent variable is the predictor variable. In the study above, the independent variable is the timed test which is used to observe changes in the heart rate of the test taker (test anxiety). The change innheartrate of the test taker is the dependent variable.

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Jeff needs to create a password for his E-mail account. The password must have four letters. How many different passwords can he
Flura [38]

Answer:

uh what about bang thats four words id.k

Step-by-step explanation:

3 0
2 years ago
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Find the solution of this system of equations. Separate the x- and y-values with a comma. x - 4y = 12 and x - y = 0
Elenna [48]
Use elimination and subtitution method to solve the problem.
First, eliminate x and you'll find the value of y
x - 4y = 12
x -  y  = 0
--------------- - (substract)
     -3y = 12
        y = 12/-3
        y = -4

Second, subtitute -4 as y and you'll find the value of x
x - y = 0
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6 0
3 years ago
Find the y intercept of the straight line with the following equations y=7+3x <br><br>3y=6x+12
neonofarm [45]

y = 7 + 3x

y = 3x + 7

y = mx + b, therefore the y-intercept is 7.


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y = 2x + 4

y = mx + b, therefore the y-intercept is 4.

8 0
3 years ago
How can you use place value to describe how 0.05 and 0.005 compare
zvonat [6]
<span>0.05 is 10 times greater than 0.005</span>
6 0
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frosja888 [35]

Answer:

He should travel directly

Step-by-step explanation:

Given

x = 0.5 --- East

y =1 --- North

If he goes through east north direction, the distance (d) traveled is:

d = x + y

d = 0.5 + 1

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If he travels directly, the distance (d) is:

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d = \sqrt{1.25}

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<em>Hence, he should travel directly</em>

6 0
2 years ago
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