Below you are given the examination scores of 20 students. 
a.
Construct a frequency distribution for this data.Let the first class be 50 - 59.
b.
Construct a cumulative frequency distribution.
c.
Construct a relative frequency distribution.
d.
Construct a cumulative relative frequency distribution.
Definitions:
Level of Employment
The sum of all individuals currently holding either full-time or part-time jobs within the economy.
Motor Manufacturing Technology
The techniques, machinery, and processes used in the production of motors and engines.
Marginal Revenue
The additional revenue gained from selling one more unit of a good or service.
Marginal Product
The additional output resulting from employing one more unit of a particular input, keeping other inputs constant.
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