EuroMillions Mean Distribution

  Number Frequency   Lucky Star Frequency   Overdue Numbers   Odd/Even Numbers   High/Low Numbers   Sum and Root Sum   Hot and Cold Numbers   Most Common Pairs   Most Common Triplets   Most Common Quadruplets   Mean, STDEV, and Range Trend   Mean Distribution   Range Distribution   STDDEV Distribtion   IQR Distribution   Clustering Distribution
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  Number Frequency   Lucky Star Frequency   Overdue Numbers   Odd/Even Numbers   High/Low Numbers   Sum and Root Sum   Hot and Cold Numbers   Most Common Pairs   Most Common Triplets   Most Common Quadruplets   Mean, STDEV, and Range Trend   Mean Distribution   Range Distribution   STDDEV Distribtion   IQR Distribution   Clustering Distribution

The Mean is one of the basic statistics often used to study past draws. It shows the average of the numbers drawn which helps in measuring and illustrating how random numbers can cluster around certain mean values over time.

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Last 75 draws
From Feb. 7, 2025 To Oct. 24, 2025

Histogram of Means

In lottery analysis, a histogram of means is used as a statistical tool to illustrate how often different average values of lotto combinations occur across multiple draws. This helps identify whether drawn combinations tend to produce lower, middle, or higher average numbers, giving insight into the overall balance and spread of outcomes.

The chart below is a histogram of mean values of lotto combinations from Feb. 7, 2025 to Oct. 24, 2025 , covering 75 draws. The range of possible means is divided into categories or bins. In this case, the bins are defined as intervals such as 1-7 up to 50-50, each representing a continuous range of mean values.

This division is necessary because individual mean values can vary widely, and grouping them into intervals makes patterns easier to observe. For example, by examining how frequently means fall into each bin, anyone can quickly see whether the draws are evenly distributed, clustered in particular ranges, or biased toward lower or higher averages.

The histogram of mean values reveals notable patterns. The most frequent mean range is 22-28 with 21 occurrences, suggesting this interval is the most common outcome across the draws. On the other hand, the least frequent mean range is 1-7, 43-49, 50-50 with 0 occurrences, indicating relatively rare outcomes in this interval. This suggests a strong concentration of mean values within specific ranges. In summary, the distribution of mean values shows a tendency for draws to cluster around the higher-frequency ranges.

Format Changes in EuroMillions

Since its launch in 2004, EuroMillions has undergone several format changes aimed at enhancing and keeping the game competitive. These changes have adjusted the number pool over the years.

Period Format Bonus Ball
February 2004 5 numbers out of 50 2 lucky stars out of 9
May 10, 2011 5 numbers out of 50 2 lucky stars out of 11
September 2016 5 numbers out of 50 2 lucky stars out of 12

The first major change occurred in 2011 when the Lucky Star pool increased from 9 to 11, making it more challenging to hit the jackpot. In 2016, the Lucky Stars increased again to 12.

How EuroMillions Format Changes Affect Your Number Strategy.

These format changes have a direct impact on statistical analysis. Mixing frequency data across different formats is not advisable because each version of the game has a different number pool and probability structure.

For example, a number that appeared frequently in the 2/9 lucky star format may have done so due to higher individual draw probability, but that same frequency can be misleading in the 2/11 and 2/12 formats.

Therefore, for meaningful analysis, it’s essential to treat each format as its own distinct dataset. Analyzing trends or frequencies should be restricted to results from within the same format period, especially if the goal is to inform number selection in the current game structure.

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