Mathematics, 05.02.2021 16:30 kcarstensen59070
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)
1) This is an experiment because a treatment was applied to a group.
2)
This is an experiment because students were able to choose which group to
join.
3) This is a survey because students were randomly assigned to groups.
4) This is a survey because a treatment was applied to both groups,
Answers: 1
Mathematics, 21.06.2019 21:50
Aline passes through the point (–7, 5) and has a slope of 1/2 which is another point that the line passes through?
Answers: 3
Mathematics, 21.06.2019 22:30
Given that y varies directly to the square root of (x + 1), and that y = 1 when x = 8,(a)express y in terms of .x,(b)find the value of y when x = 3,(c)find the value of x when y = 5.
Answers: 1
Mathematics, 21.06.2019 23:30
Use the ratio test to determine whether ∑n=14∞n+2n! converges or diverges. (a) find the ratio of successive terms. write your answer as a fully simplified fraction. for n≥14, limn→∞∣∣∣an+1an∣∣∣=limn→∞.
Answers: 3
Mathematics, 22.06.2019 03:00
Find the slope of the line that passes through the points (0, 0) and (-2, -3). 2/3 3/2 -3/2
Answers: 2
A teacher interested in determining the effect of a new computer program on
learning to read conduc...
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