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sergey [27]
3 years ago
14

A researcher thinks that a person's mood has an effect on how helpful that person is likely to be. To test this, the researcher

has participants come to the laboratory where they are first given a difficult test and then either heavily praised or strongly criticized for their test performance. As it happens, the researcher has one of two research assistants, one who is a bit rude and the other more friendly, running each participant through the experimental procedure. After the praise or critical feedback, each participant is asked to help the research assistant in moving some heavy boxes into another room. The researcher observes how many boxes each participant moves in helping the research assistant. One possible confound for this experiment is ________.
Mathematics
1 answer:
eimsori [14]3 years ago
5 0

Answer:

One possible confound for the experiment is the attitude of the research assistants.

Step-by-step explanation:

A confounder simply means a variable that has impact in influencing both the dependent variable and independent variable, causing a spurious association.

So, we can conclude that the attitudes of the research assistants have positive and negative impacts in determining the reactions of both participants in the experiment.

The rudeness of a research assistant will negatively impact the response of the participant allocated to him/her.

The calmness of the other research assistant will positively impact the response of the participant allocated to him/her.

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Which answer uses the distributive property to write an expression equivalent to 5(32). 5(32) 5+30+2 5(30+2) 5*30*2
melisa1 [442]

Answer:

5(30 + 2)

Step-by-step explanation:

5(32)=160

5(30+2)=160

The rest equal different numbers

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3 years ago
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If maya and her friends share the money equally, how much will each person get? Explain how you found your answer.
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20 cents because 80 cents / 4 ppl is 20
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4 years ago
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Write an equation of a line perpendicular to y = x + 4 in slope-intercept form that passes through the point (-2, 6)
Scrat [10]
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5 0
4 years ago
Anyone know what the answer is???(sorry if it’s unclear)
Sergio [31]

The laws of exponents I will be using are:

(x^y)^z = x^{yz}, and x^y \cdot x^z = x^{y+z}.

For the first part, (15^3)^3 \cdot 15^{-6} = 15^9 \cdot 15^{-6} = 15^3.

For the second part, 15 \cdot (15^3)^2 \cdot (15^{-5})^2 = 15 \cdot (15^6) \cdot (15^{-10}) = 15^{1+6-10} = 15^{-3} = \frac{1}{15^3}.

5 0
3 years ago
The height of a triangle is 3cm less than twice the base. The area is 10cm2
Kamila [148]

Answer:

The base is 4cm and the height is 5cm.

Step-by-step explanation:

This is a solve the system question. Call H the height of the triangle and B the base. The question tells us:

H=2B-3

and

\frac{B \times H}{2}=10

Sub the first equation into the second (as H is already isolated). You will end up with a quadratic equation - solve that any way you wish (e.g. quadratic formula). I've provided the factored form below which shows you the roots:

\frac{B(2B-3)}{2}=10\\\frac{2B^2-3B}{2}=10\\2B^2-3B=20\\2B^2-3B-20=0\\(2B+5)(B-4)=0\\B= - \frac{5}{2},4

In this question, we take B=4. You can't have a negative side length so the other answer is eliminated. Now sub the value for B into either of the original equations. I'll use the first, again because H is already isolated:

H=2(4)-3\\H=8-3\\H=5

3 0
3 years ago
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