CAIE S1 2003 November — Question 1

Exam BoardCAIE
ModuleS1 (Statistics 1)
Year2003
SessionNovember
TopicMeasures of Location and Spread
TypeCalculate statistics from discrete frequency table
1 A computer can generate random numbers which are either 0 or 2 . On a particular occasion, it generates a set of numbers which consists of 23 zeros and 17 twos. Find the mean and variance of this set of 40 numbers.
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