1.

All important formulas in probability and statistics

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Some important formulas of..

1). STATISTICS : —

>> MODE = l + f1 – f0 / 2f1 – f0 –f2 × h .
>> MEAN ( for grouped data )
= sigma fixi / sigma fi.
>> Mean ( for UNGROUPED data )
= sigma x / n
>> Median ( for grouped data )
= l + ( n/2 – cf / f ) × h
>> Empirical FORMULA
= 3 median = Mode + 2Mean.

2). Probability :–

>> P (E) = No.of outcomes favourable to E
/ No.of all possible outcomes.
>> P (E) = 1– P ( E).

Hope it helps....!!!!!


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