# Nursing Preparation Study Guide

Nursing Preparation Study Guide The given below line graph shows monthly profits earned by a company during the first half of the year.

Profits (in USD million)

10 15 20 25 30 35

0 5

January February March

April

May

June

We can read the chart by joining the lines corresponding to each point to both the vertical and horizontal axis. It can be interpreted, for instance, that the company earned a profit of USD 10 million in the month of January. Similarly, we can find the same for other months. These graphs are important for analysis and interpretation that facilitates decision making. For instance, one can see that the profitability decreases in April, rising trend of profits during the period in study etc. It should also be noted that in the above example, only one line graph was given. But it may also be possible that multiple lines are given in the graph each line denoting different variables. For instance, the profitability of two companies over different years can be given by two line graphs in one plot. 4.1.6 Pie Charts Pie charts are one of the most ubiquitous types of charts as one can see them in variety of places like business reports, newspapers and even magazines. One of the fundamental premises to understand pie chart is to remember that. pie chart comprises of different smaller parts, such that when all the smaller parts are added gives the total sum. That is, add up all the slices of the pie and you get the complete pie. Hence, it is vital to understand that pie charts explain the size relationship between different parts of one whole thing. Let us now see, how a pie chart looks like and how can we interpret meaning of it. The pie chart below shows the survey results about the transportation method of 200 students to and from school.

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