DrJones Is Studying the Effects of Caffeine on Recall

question 147

Essay

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.

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Definitions:

Compounded Quarterly

A method of calculating interest where the interest amount is added to the principal every three months, increasing the amount on which subsequent interest is calculated.

Interest

The cost of borrowing money or the return on investment, typically expressed as a percentage of the principal amount.

Scheduled Debt

A fixed plan for the repayment of borrowed money, including principal and interest, over a specified period.

Compounded Quarterly

Interest calculation method where the interest is added to the principal four times a year, leading to more interest earned or paid than if it were compounded less frequently.