Question

Visualizing Data Exercise For each dataset, circle the type of figure that would be most appropriate. Sketch the figure the actual values do not matter - we are interested in what is labeled, how it is labeled, and the basic gist of what the figure might look like) and include a figure legend. 1. We measured the fat content of three brands of donut and wish to show how the mean and standard deviation of the fat content compares among brands: Scatter plot Bar graph Line Graph Histogram 2. We measured the water temperature of one lake every hour for four weeks. We wish to show the details of how this temperature fluctuated day-to-day: Line Graph Histogram Scatter plot Bar graph

Answer 1

1. Bar graph

2. Line graph

Importance of different types of graphs - .

Line graph - A line graph would be the best to represent bacterial growth at various time intervals. It is because in this graph we would be determining the temperature of lake at every point of time (Per hour). We would be able to easily make out the temperature at different time. It is because a line graph gives us a shape of the curve which we can identify as bell shaped curve of sigmoid curve and then interpret our data accordingly.

Histogram - we prepare histogram when we have a continuous data. For example we have a data of height of students in a classroom.

Bar graph - we prepare bar graph when we have a discontinuous type of data. For example in the given question we have fat content of 3 brands of doughnuts. For one brand, we have only one value. So you will plotted on a bar graph and means and standard deviation values will be shown on the top of the graph.

Scatter plot - scatter plot is made when we want to show a correlation between two variables. For example a relation between height and weight in Apple fruits.

F o r mean afb of ato ptg standard devialn. devialin % fat HE content 1 2 3 Brand atemplialue plake - tume →

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