Probability and statistics study random events and numerical data. Probability emerged in 17th century gambling and insurance studies. Statistics developed in early 19th century as population analysis
A combination is a selection of distinct items from a set without order. A k-combination of n elements is a subset of k distinct elements. Two combinations are identical if they have the same members
Non-eliminating tournament format with fixed number of rounds. Competitors meet one-on-one in each round. Winner determined by highest aggregate points earned. System originated in 1895 by Julius Müller in Zürich
Players select 5 white balls (1-69) and 1 red Powerball (1-26). Drawings occur Monday, Wednesday, and Saturday at 10:59 PM EST. Each game costs $2, with Power Play available for $1 extra. Tickets are valid for one drawing unless purchased for multiple
Choose random numbers that aren't closely spaced. Avoid sentimental numbers like birthdays. Mix odd and even numbers for better odds. Select numbers within 70% most probable range. Quick picks can be used as starting point
Most common numbers are 28, 16, 39, 32, and 15. Numbers below 31 tend to be picked more frequently. State lottery programs offer frequency charts for number selection