what does a dot plot show, that a histogram doesn't?
Although histograms and box plots are collectively part of the chart aid category, they do represent very different types of charts. Both charts effectively represent different data sets; however, in certain situations, one chart may be superior to the other in achieving the goal of IDENTIFYING VARIANCES AMONG DATA. The type of chart aid chosen depends on the type of data collected, rough analysis of data trends, and project goals.
A histogram is highly useful when wide variances exist among the observed frequencies for a particular data set. As seen in the two graphs to the left, the histogram shows that there are three peaks within the data, indicating it is tri-modal (three commonly recurring groups of numbers). This is important because to improve processes, it is critical to understand what is causing these three modes. Had this data simply been graphed using a box plot, the values would average one another out, causing the
Um I didn't say this before! but English please.
A dot plot is a type of graph that displays the distribution of a dataset by showing each data point as a dot along a number line. A dot plot is similar to a histogram in that it represents the frequency or count of each data point, but there are a few key differences.
One major difference is that a dot plot shows the exact values of each data point, while a histogram only represents the data points within a range or bin. In a histogram, the data points are grouped together and represented by bars. The height of each bar indicates the frequency or count of data points falling within a specific range of values.
In contrast, a dot plot displays each individual data point as a dot on the number line. Each dot represents one data point, and when multiple data points have the same value, the dots are stacked vertically. This allows for a more detailed representation of the dataset, as you can see every data point and its specific value.
Since a dot plot displays each data point individually, it can provide a more precise and granular representation of the dataset compared to a histogram. It is especially useful for small datasets where individual data points are important. However, as the dataset grows larger, a dot plot can become cluttered and less practical, making a histogram a better choice for large datasets.