To return random numbers without duplicates you can use a formula based on the RANDARRAY, SEQUENCE, SORTBY, and INDEX functions. In the example shown, the formula in F5 is: =INDEX(SORTBY(SEQUENCE(C5,1,C4,C6),RANDARRAY(C5)),SEQUENCE(C7)) The result is …Read more
The Excel GROUPBY function is designed to summarize data by grouping rows and aggregating values. The result is a summary table created with a single formula.Read more
Combinations and permutations are two basic ways to count possibilities, used in probability, statistics, games, passwords, and lotteries. This article explains the difference between them, when order and repetition matter, and the Excel functions you can use to calculate each case: FACT, PERMUT, …Read more
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