Overtime Hours
a Personnel Manager Is Reviewing Number of Overtime

question 185

Short Answer

Overtime hours
A personnel manager is reviewing number of overtime hours worked by employees in her plant.She has compiled the following data: $$\begin{array} { | c | c | c | } \hline \begin{array} { c } \text { Number. of Overtime } \\\text { Hours Worked }\end{array} & \begin{array} { c } \text { No. of Employees } \\\text { (Frequency) }\end{array} & \begin{array} { c } \text { Probability } \\\text { P(x) }\end{array} \\\hline 0 & 12 & 0.128 \\3 & 18 & 0.191 \\4 & 10 & 0.106 \\5 & 13 & 0.138 \\6 & 15 & 0.160 \\7 & 12 & 0.128 \\8 & 14 & 0.149 \\\hline \text { Total } & 94 & 1.000 \\\hline\end{array}$$ For a randomly selected employee let X be the number of overtime hours worked,and define the following events:
A = employee who works no overtime.
B = employee who works at least 7 hours overtime.
C = employee who works at most 4 hours overtime.
-Determine the probability of event B.

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Definitions:

Archaic Humans

Early forms of Homo species, such as Homo neanderthalensis and Homo heidelbergensis, that share some characteristics with modern humans but also have distinct anatomical differences.

H. Heidelbergensis

A now-extinct species of archaic human from the Middle Pleistocene, known from fossils found in Europe, Africa, and possibly Asia.

Neanderthals

An extinct species of hominids that lived in Eurasia until about 40,000 years ago, known for their robust build and large cranial capacity, sharing some genetic heritage with modern humans.

Coexisted

The state of living or existing at the same time or in the same place as another organism or entity.