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m_a_m_a [10]
3 years ago
6

Do children prefer purple juice or yellow juice? Two different supplements, which have no effect on taste, are used on identical

juice to produce purple juice or yellow juice. Volunteer children are randomly assigned to either purple juice or yellow juice, and they are asked to rate the juice on a scale from 1 point to 10 points. Is blinding demonstrated in the experiment? No, because the volunteers do not know the color juice they are getting Yes, by having the experimenter in a separate room pick one of the two containers at random and having a juice pulled from that container remotely Yes, by having the statistician analyzing the results not know which volunteer sampled which juice Yes, by having the volunteers wear a blindfold while drinking the juice out of the container, so that they don't know the color juice they are tasting No, because the volunteers know whether they are drinking purple juice or yellow juice
Mathematics
2 answers:
Archy [21]3 years ago
8 0

Answer:

Yes, by having the experimenter in a separate room pick one of the two containers at random and having a juice pulled from that container remotely

Step-by-step explanation:

hope this helped

QveST [7]3 years ago
8 0

f.  No, because the volunteers know whether they are drinking purple juice or yellow juice

I took the quiz and got it right :)

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The height of a room is 8 feet and 2 inches. If Maria is 64 inches tall, what is the distance from the top of her head to the ce
Natali [406]
Convert 8 feet and 2 inches to inches.

8ft * 12in/ft = 96in + 2 in = 98 in. 

Now subtract the ceiling height from her height.  

98in - 64in = 34in
6 0
4 years ago
Read 2 more answers
Two angles are supplementary. Three times the measure of one angle is 20° more than the measure
In-s [12.5K]

Answer:

  50°, 130°

Step-by-step explanation:

All measures are in degrees. Let x represent "one angle". Then the other is (180-x) and we can write the relation ...

  3x = 20 +(180 -x)

  4x = 200 . . . . . . . add x, collect terms

  x = 50 . . . . . . . . . . one angle

  180 -50 = 130 . . . .the other angle

The measures of each angle are 50° and 130°.

6 0
4 years ago
10. The average age of 4 boys is 14 years, when one boy leaves the group, the average age of the remaining boys becomes 15 years
Hatshy [7]

Answer: the 4th boy is 11

Step-by-step explanation:

Let's denote the age of the boys as: x₁, x₂, x₃, x₄.

Then,

\displaystyle\\\frac{x_1+x_2+x_3}{3}=15

Multiply both parts of the equation by denoting by 3:

x₁+x₂+x₃=15(3)

x₁+x₂+x₃=45

Hence,

\displaystyle\\\frac{x_1+x_2+x_3+x_4}{4} =14\\\\\frac{(x_1+x_2+x_3)+x_4}{4} =14\\\\\frac{45+x_4}{4}=14

Multiply both parts of the equation by denoting by 4:

45+x₄=14(4)

45+x₄=56

45+x₄-45=56-45

x₄=11

3 0
1 year ago
Rational number, integer -5 What is the fraction?
Pavlova-9 [17]

Answer:

<h2>The answer would be negative five over one or -5/1 </h2>

8 0
3 years ago
If y varies directly with x, and y=12 when x=3. Find y when x=13
Lunna [17]
Answer: y = 52
Explanation:
13/3=4 1/3
4 1/3 times 12 = 52

Ratio explanation
(Times 4 1/3) 12:3 (divided by 4 1/3
New Ratio- 52:13
3 0
4 years ago
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