how to make a bar graph which has the data in decimal form ?
Answers
Step-by-step explanation:
You want to make a graph of your data because this will show your audience the shape and trends you have observed. You are stuck, however, because your data set has decimals and you are unsure how to graph those. Decimals are fractions written in a specific, shorthand-form based on a denominator of 10, 100, 1000s or another number that has a base of 10. You can graph with decimals in the same way you graph whole numbers, however you must adjust your number scales to include these fractional equivalents.
Arrange your data in a single column from lowest to highest value.
An example is:
0.2 0.44 0.45 0.58 0.58 0.67 1 2 3 4
Compose your vertical scale, which includes the values of the data points, to include a range of numbers that includes both the lowest and the highest number in your dataset. In this example increments of .5 or ½ provide a nice visual representation of your dataset. The range is from zero to 4.5.
In this example:
0 .5 1 1.5 2 2.5 3 3.5 4 4.5
Mark off values for the horizontal scale for your graph in increments of one, as you need to mark off a spot for each individual observation. Since there are 10 observations in this sample, the scale would range from zero to 10. Include the zero value so you can intersect your horizontal axis with your vertical axis.
Denote the values of each data point by finding the intersection between the horizontal and vertical scales. Put a dot, star or bar at the intersection of the value of 1 or the first value in your data set and at the .2 value, which is about one-third of the way between the 0 and .5 values on the vertical axis.
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How to Read Log Scale Graphs
Updated April 24, 2017
By Stephanie Ellen
A regular graph has numbers spaced at even intervals, while a log scale graph has numbers spaced at uneven intervals. The reason for this is that while a regular graph uses regular counting numbers like 1,2,3,4, and 5, a logarithmic graph uses powers of 10, such as 10, 100, 1000 and 10,000. To add to the confusion, scientific notation is often used on log scale graphs, so instead of 100 you might see 10^2. Reading a log scale graph is no more challenging than reading a regular X Y axis graph.
Locate the point on the X axis that you want to take a reading for.
Find the corresponding point on the Y axis. Draw an imaginary vertical line with your finger up to the graph and then draw an imaginary line to the left until you cross the vertical axis. This is your Y axis reading.
Convert the number from scientific notation if necessary. For example, if the reading is 10^2, the actual number is 1,000.
You can graph with decimals in the same way you graph whole numbers, however you must adjust your number scales to include these fractional equivalents. Arrange your data in a single column from lowest to highest value.