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