The Accompanying Cumulative Relative Frequency Distribution Shows a Summary of the Scores

question 6

Essay

The accompanying cumulative relative frequency distribution shows a summary of the scores from an Algebra II exam at a local high school.Twenty students took the exam. a.Construct the relative frequency distribution.What proportion of students scored between 81 and 90?
b.Construct the frequency distribution.How many students scored between 71 and 80?
c.Construct an ogive.What is the approximate percentage of students that scored less than 85?

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Definitions:

Universal Gas Constant

A physical constant that appears in many fundamental equations in the physical sciences, such as the ideal gas law.

Gas Constant

A physical constant that appears in the ideal gas law, relating the energy scale to the temperature scale.

Combined Gas Law

A gas law that combines Charles's law, Boyle's law, and Gay-Lussac's law to describe the relationship between the pressure, volume, and temperature of a fixed amount of gas.

Temperature

A physical quantity that expresses hot and cold, representing the average kinetic energy of particles in a matter.