Activity Histogram

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This graph shows the likelihood of clicking after 1, 2, 3, 4, ... 14 days for this rented referral. This is statistical model built based on the referral clicking behavior, this model is also known in Mathematics as probability mass function.


For the above graph as an example, we can read it as follows:


In the following two examples, we will illustrate how the Activity Histogram is built compared to the Clicks Graph.

Example # A

In this example, the referral have made 4 clicking occurrences as follows:

  1. First clicking occurrence after 6 days
  2. Second clicking occurrence after 7 days
  3. Third clicking occurrence after 1 day
  4. Fourth clicking occurrence after 3 days


Notice the Activity Histogram is showing 4 bars on 1, 3, 6, and 7, each bar is having same height (0.25 = 1 ÷ 4). Also, for the Mean = ((1 × 1) + (1 × 3) + (1 × 6) + (1 × 7)) ÷ 4 = 4.25 4.3


Example # B

In this example, the referral have made 7 clicking occurrences as follows:

  1. First clicking occurrence after 1 day
  2. Second clicking occurrence after 5 days
  3. Third clicking occurrence after 3 days
  4. Fourth clicking occurrence after 4 days
  5. Fifth clicking occurrence after 1 day
  6. Sixth clicking occurrence after 5 days
  7. Seventh clicking occurrence after 1 day


Notice the Activity Histogram is showing 4 bars on 1, 3, 4, and 5, and the bars' heights are (3 ÷ 7 0.43), (1 ÷ 7 0.14), (1 ÷ 7 0.14), and (2 ÷ 7 0.29) respectively. Also, for the Mean = ((3 × 1) + (1 × 3) + (1 × 4) + (2 × 5)) ÷ 7 = 2.857 2.9