Basic Data Analysis: Lotofácil Lottery

Introduction

This project aims to analyze and extract insights from the official results of Lotofácil, a popular Brazilian lottery game. In Lotofácil, players select 15 numbers from a pool of 1 to 25. The minimum prize is awarded for matching at least 11 numbers, while the top prize is given for correctly matching all 15 numbers.

Dataset Analysis

Analysis was performed on 461 historical results provided in results.json.

• ✅ All results are unique (no repeated full combinations).

Number Distribution

• Even Numbers: 48.32%
• Odd Numbers: 51.68%

Frequency Insights

• Most Frequently Drawn Numbers: 10, 11, 12, 20, 25
• Least Frequently Drawn Numbers: 6, 16, 17, 19, 23
• Range with Most Drawn Numbers: 11–15
• Range with Least Drawn Numbers: 16–20

Result Similarity Over Time

• In 64.13% of the 460 games, a new result had at least 9 numbers in common with the previous one.

🔗 Sequence Patterns

• Frequency of Consecutive Sequences:

  Max Consecutive Sequence	Frequency
  1 seq.	0.22%
  2 seq.	11.93%
  3 seq.	33.19%
  4 seq.	29.50%
  5 seq.	13.23%
  6 seq.	6.72%
  7 seq.	2.82%
  8 seq.	1.74%
  9 seq.	0.22%
  10 seq.	0.22%
  11 seq.	0.22%

• Game with Most Numbers in Sequence:
  3, 5, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 25

• Game with Least Numbers in Sequence:
  1, 2, 4, 7, 8, 10, 12, 13, 15, 17, 19, 20, 22, 24, 25

• Frequency of Gapped Sequences:

  Gapped Sequence Length	Frequency
  4 seq.	0.00%
  5 seq.	0.87%
  6 seq.	4.99%
  7 seq.	16.49%
  8 seq.	33.41%
  9 seq.	26.46%
  10 seq.	13.67%
  11 seq.	3.90%
  12 seq.	0.22%

• Game with More Gapped Sequence:
  2-3-4-5-6-7-8-9-10-11-12-17-18-21-22

• Game with Less Gapped Sequence:
  1-3-4-5-7-9-12-14-16-18-19-21-22-23-25

🔄 Frequency of Repeat Matches

Each result was compared with all subsequent ones. Below is the frequency of match points observed:

Points Matched	Occurrences
5 pts	83
6 pts	1,634
7 pts	9,322
8 pts	24,981
9 pts	34,035
10 pts	24,833
11 pts	9,224
12 pts	1,745
13 pts	169
14 pts	4
15 pts	0

🎲 Simulation of Random Games

Out of 326,876 simulated games, the following results occurred:

Score	Frequency
11 pts	28,667
12 pts	5,586
13 pts	468
14 pts	10
15 pts	0

📐 Estimated Probability of Winning

Score	Approx. Odds (1 in N)
11 pts	11
12 pts	60
13 pts	692
14 pts	21,792
15 pts	3,268,760

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⚠️ Disclaimer

Lottery results are inherently random. While statistical analysis can provide interesting patterns, it does not predict future results. All insights presented are based solely on the current dataset (results.json) and may change as more data is added or removed.

Prerequisites

• Python 3.x

🚀 How to Use

1. Clone the repository:

   git clone https://github.com/RobisonTorres/Data_Analysis_Lottery.git

2. Navigate to the project directory:

   cd Data_Analysis_Lottery

3. Run the main script:

   python analyzing.py

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Feel free to fork, analyze, and contribute!