Ms andrew made a line plots below to compare the quiz score for her first period math class and her second -period math class. s
he gave the same quiz to each class. what conclusion can ms andrew make about the performance to her first dn second period classes
2 answers:
A. The first-period class had a higher median score than the second-period class.
B.The second-period class scores had a higher mean than the first-period class scores.
C.The first-period class scores had a greater range than the second-period
class scores.
D.The second-period class scores had a greater mean absolute deviation than the first-period class scores.
Answer : B. .The second-period class scores had a higher mean than the first-period class scores.
The score diagram is attached below
From the diagram we can see that the score in first period is more than the score in second period. Most of the score are greater in second period.
So ,The second-period class scores had a higher mean than the first-period class scores.
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