The figure below shows a cumulative relative frequency plot of 40 scores on a te

Question

The figure below shows a cumulative relative frequency plot of 40 scores on a test given in a Statistics class. Which of the following conclusions can be ma from the graph? Stat test grades 100.00% 80.00% 60.00% 40.00% 20.00% 0.00% 50 60 70 90 100 a) OThe horizontal nature of the graph for test scores of 60 and below indicates that those scores occurred most frequently b) There is greater variability in the lower 20 test scores than in the higher 20 test scores c) The median test score is less than 70. d) Sixty percent of the students had a test score above 80.

Explanation / Answer

solution:- option D

the conclusion made from the graph is

sixty percent of the students had a test score above 80

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