Mathematics, 17.12.2019 21:31 natimike10
Ateacher 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?
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: 2
Mathematics, 21.06.2019 15:30
Suppose you want just guess at the answers in a 5 question multiple-choice test. each question has 3 responses and only one is correct. what is the probability of getting two questions right just guessing? 20 points 0.3275 0.2753 0.7532 none of the above
Answers: 3
Mathematics, 21.06.2019 19:30
Asquare has a side that measures 11 units. what is the area of a circle with a circumference that equals the perimeter of the square? use 3.14 for π, and round your answer to the nearest hundredth. 1519.76 units2 379.94 units2 616.56 units2 154.14 units2
Answers: 1
Mathematics, 21.06.2019 21:30
The price of a dozen eggs was $1.63. suppose the price increases m dollars per dozen and then the price decreases $0.12 per dozen. which expression represents the current price of eggs after the two price changes?
Answers: 1
Ateacher interested in determining the effect of a new computer program on learning to read conducte...
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