Question
Find the mean and variance for each of the data :



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Practice questions from similar books
Question 1
In a retail market, fruit vendors were selling mangoes kept in packing boxes. These boxes contained varying number of mangoes. The following was the distribution of mangoes according to the number of boxes.If mean number of mangoes kept in a pocket box. Which method of finding the mean did you choose?
Question 2
If the standard deviation of the numbers 2, 3, a and 11 is 3, 5, then which of the following is true ?

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Question Text | Find the mean and variance for each of the data : |