What Probability histogram is
A probability histogram is a type of graph that visually displays the probability of a given outcome occurring. It is used to summarize data and to provide a visual representation of the probability distribution of a given set of data.
Steps for creating a probability histogram:
-
Collect the data that you want to visualize.
-
Calculate the relative frequency of each data point by dividing the frequency of the data point by the total number of data points in the set.
-
Divide the range of values into equal intervals.
-
Count the number of data points in each interval.
-
Construct a bar graph with the relative frequency of each interval on the vertical axis and the intervals along the horizontal axis.
-
Label the graph with the appropriate labels and units of measurement.
Examples
-
A probability histogram can be used to plot the probability distribution of a continuous random variable such as the mean of a sample population.
-
A probability histogram can be used to plot the probability distribution of a discrete random variable such as the number of heads in a series of coin flips.
-
A probability histogram can be used to plot the probability distribution of a set of categorical variables such as gender or race.