Deals Of The Week - hours only!Up to 80% off on all courses and bundles.-Close
Histogram – basics
1. Histogram – definition
More on histograms

Instruction

A histogram is a way of representing data in graphical form, letting us see how the data are distributed. Here is an example of a histogram:

values012345count

Reading a histogram is easy. The height of each bin (the green rectangles) tells you how many elements with values corresponding to bin values are in the dataset.

In this histogram, we can see that there are exactly 3 elements with values from 0 to 10 (excluding 10) and 4 elements with values between 10 and 20 (excluding 20).

Exercises

Based on the example histogram, answer the following questions:

values012345count

  1. How many elements in the dataset have values greater than or equal to 30 and less than 40? (Your answers should look like X-Y, where X and Y are numbers (e.g. 10-20).

    Answer:

  2. Which interval (bin) contains:
    • the most values?

      Answer:

    • the least values?

      Answer:

  3. How many elements are there in the dataset?

    Answer: