Dr.Jones is studying the effects of caffeine on recall.She has collected data from 20 students.needs
a.Calculate the relative frequency,cumulative frequency and cumulative relative frequency for the distribution.
b.What is the relative frequency associated with a score of 9 on the recall test?
c.What is the cumulative relative frequency associated with a score of 6?
d.What is the cumulative frequency for the score of 3?
e.Now draw a frequency histogram of the data set above.
Correct Answer:
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b..15...
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