The Frequency Distribution of the Number of Years of Service

question 30

Essay

The frequency distribution of the number of years of service for 100 employees is shown below. $$\begin{array} { | l | c | } \hline \text { Years } & \text { Frequency } \\\hline 0 \text { up to } 5 & 12 \\\hline 5 \text { up to } 10 & 16 \\\hline 10 \text { up to } 15 & 42 \\\hline 15 \text { up to } 20 & 20 \\\hline 20 \text { up to } 25 & 10 \\\hline \text { Total } & 100 \\\hline\end{array}$$ a. Estimate the proportion of employees who have fewer than 10 years of service.
b. Estimate the proportion of employees who have more than 20 years of service.
c. Estimate the proportion of employees who have between 10 and 20 years of service.

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Definitions:

Mountain Biomes

Mountain biomes are ecosystems found in mountainous regions, characterized by distinct climatic conditions at different elevations, leading to diverse flora and fauna adapted to those conditions.

Atmospheric Changes

Alterations in the Earth's atmosphere's composition or properties, often due to natural processes or human activities, that can affect climate and living conditions.

Vegetation Loss

The depletion of plant life in an area due to factors like deforestation, urbanization, or climate change.

Coniferous Forests

Forest ecosystems dominated by cone-bearing trees, such as pines, spruces, and firs, which are mostly evergreen and adapted to cooler climates.