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Question 10 The mean of the following distribution is 50. x1030507090f175a+3327a−1119 Find the value of a and hence the frequencies of 30 and 70.

Answer» Question 10
The mean of the following distribution is 50.

x1030507090f175a+3327a1119

Find the value of a and hence the frequencies of 30 and 70.


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