Determine if the following scenario is a Randomized Comparative Experiment or a matched pairs experiment “To study the effect of classical music on concentration, 26 math majors were assigned at random into two groups. Subjects in one group listened to classical
music while trying to solve a hard Sudoku puzzle, while the subjects in the other
group solved the same puzzle in a silent room. The time it took each student to
finish was recorded.”

Step-by-step explanation:

(a) matched pairs experiment, since the experiment is carried out twice on the same set of students.

(b) randomized comparative experiment , since the 2 video-game player groups are independent

(c) randomized comparative experiment , since the 2 math majors groups are independent.

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step-by-step explanation:

b) 1/3 * 1/5

step-by-step explanation:

each smallest part is 1/15 since the written one is 1/5 and it's divided by 3 equal parts. (1/5 )/3 = 1/15 = 1/3 * 1/5