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Korolek [52]
3 years ago
10

Hans is performing an experiment examining how salt affects the speed at which water freezes. He fills four equally sized contai

ners with the same amounts of water. Then, in three of the containers, he stirs in varying amounts of salt. The fourth container remains plain water.
Hans places all four of the containers in the same freezer and checks the containers every five minutes, recording when the water in each container freezes solid.

In this situation, what do Hans’s time measurements represent?

A.
the response variable
B.
the control group
C.
the response group
D.
the explanatory variable
Mathematics
1 answer:
Yakvenalex [24]3 years ago
5 0

Answer:

Answer B.

Because we know He's checking the experiment every 5 minutes.

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That is;
P(x<0.496) and P(x>0.504) are not acceptable.

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Therefore, unacceptable proportion = P(x<0.496)+P(x>0.504) = 0.3707+0.0099 = 0.3806 or 38.06%
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What number fall between the square root of 180
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3 0
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