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
SUBMIT

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The classrooms are trying to raise $1,200.00 for charity. mrs. leblanc's class has raised 50%. mr. patel's class has raised $235.14 ms. warner's class has raised 1/3 as much as mrs. leblanc's class. how much more money is needed to reach the goal of $1,200.00?

Isuck at math ; ^; m a student solved this problem and said the answer is 3 feet. chase had a roll of ribbon that contained 7 7/8  feet of ribbon. he cut off one piece that was 3 5/8  feet long and another piece that was 1 1/4  feet from the roll. how much ribbon was left on the roll? is the student's answer reasonable? yes, the answer is reasonable. no, the answer is not reasonable. it should be about 2 feet. no, the answer is not reasonable. it should be about 13 feet. no, the answer is not reasonable. it should be about 4 feet.