MATHS - Statistics - Missing Value When Mean Known

The video tutorial explains how to find a missing value when given the mean. It covers the concept of mean as a form of average, calculated by dividing the sum of values by their count. The tutorial demonstrates reversing this process using multiplication to find original values. A scenario involving students' test scores is used to illustrate calculating mean for different groups and the entire class. The use of tables to organize data and solve problems is emphasized, showing how to find unknown sums or counts. Practical examples are provided to reinforce understanding.

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