Find mean of the following data :

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Mean of Grouped Data Using Direct Method, Class Mark in Grouped Frequency Distribution | PadhAiPro

Question

TextMean of Grouped Data Using Direct MethodClass Mark in Grouped Frequency DistributionCBSE PYQ

If the mean of 2, 9, x+6, 2x+3, 5, 10, 5 is 7, then the value of x is :

The class mark of the class 90-120 is

In a frequency distribution, the mid value of a class is 10 and the width of the class is 6. The lower limit of the class is

The class marks of the median class of the following data is

The mean of the following distribution is

Assertion (A): The arithmetic mean of the following given frequency distribution table is 13.81. Reason (R): Mean = ∑fx / ∑f