Mathematics, 24.04.2020 09:26 esanchez2002fcb
A teacher interested in determining the effect of a new computer program on learning to read conducted a
study. One hundred students were randomly assigned to one of two groups. The first group used the computer
program while the second group did not. Both groups were tested to determine how much their reading levels
improved. The results for the two groups were compared. What kind of study is this? (2 points)
This is an experiment because a treatment was applied to a group.
This is an experiment because students were able to choose which group to join.
This is a survey because students were randomly assigned to groups.
This is a survey because a treatment was applied to both groups.
Answers: 3
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Chose the graph below that represents the following system of inequality’s
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Aheated piece of metal cools according to the function c(x) = (.5)x ? 7, where x is measured in hours. a device is added that aids in cooling according to the function h(x) = ? x ? 2. what will be the temperature of the metal after two hours?
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Mathematics, 21.06.2019 16:50
Line l passes through points (0,4) and (3,6) what is the slope of a line that is parallel to line l -2/3 -3/2 2/3 3/2
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A teacher interested in determining the effect of a new computer program on learning to read conduct...
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