Mathematics, 23.06.2020 17:01 chelsea73
The effect of the time of day a psychology class is taught on test scores is
being studied in an experiment. Student ability has been identified as an
extraneous factor that could also affect test scores. How can student ability
best be addressed to minimize its effect in the experiment?
A. Replication of the experiment at different times of the year
B. Randomization of students in morning and afternoon classes
C. Blocking into groups based on the teacher of the class
D. Direct control of what textbook is used
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Answers: 3
Mathematics, 21.06.2019 14:00
Emma will roll two number cubes labeled 1 through 6. she will record the sum of the two numbers after each roll. she will roll the two cubes 540 times. how many times should emma expect the sum to equal 5?
Answers: 2
Mathematics, 21.06.2019 16:30
Amuffin recipe, which yields 12 muffins, calls for cup of milk for every 1 cups of flour. the same recipe calls for cup of coconut for every cup of chopped apple. to yield a batch of 30 muffins, how much flour will be needed in the mix?
Answers: 1
Mathematics, 21.06.2019 18:50
The random variable x represents the number of phone calls an author receives in a day, and it has a poisson distribution with a mean of 8.7 calls. what are the possible values of x
Answers: 1
The effect of the time of day a psychology class is taught on test scores is
being studied in an ex...
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