4.1 Fig. 16 shows the final grades of some Grade 8 students. Analyse the graphs and answer the following
Practice Question 3
questions:
udo from the bar graph. (a) list 3 things that you can conclude from the bar graph.
(b) list 3 things that you can conclude from the circle graph.
(c) to find the number of students who got a 'B' grade , which types of graph would you use? give reason for your answer.
Answers
Answer:
What is a Bar Chart?
A bar chart is a graph with rectangular bars. The graph usually compares different categories. Although the graphs can be plotted vertically (bars standing up) or horizontally (bars laying flat from left to right), the most usual type of bar graph is vertical.
The horizontal (x) axis represents the categories; The vertical (y) axis represents a value for those categories. In the graph below, the values are percentages.
Step-by-step explanation:
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Answer:
Bar charts are good for comparisons, while line charts work better for trends. Scatter plot charts are good for relationships and distributions, but pie charts should be used only for simple compositions — never for comparisons or distributions.Bar charts are a type of graph that are used to display and compare the number, frequency or other measure (e.g. mean) for different discrete categories of data.When analysing bar charts and trend graphs it is good practice to describe what the graph is measuring. If there is no title you should give a description of what the two axes (i.e. the horizontal line and the vertical line) are representing. Range: The difference between the largest value and the smallest value.A double bar graph is a graphical display of information using two bars besides each other at various heights. The bars can be arranged vertically or horizontally. We can use a double bar graph to compare two data groups. A double bar graph has two axes
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