Partition sum:A Problem on probability

A and B pick up a handful of rice from a bag containing 1kg(first A and then B).They weigh them and replace.Repeating the experiment,they find that on the average they pick up waw_a and wbw_b of rice.Show that if they would have counted the rice grains and multiplied the numbers they would have obtained an average wawbN2(1−1N)w_aw_bN^2(1-\frac{1}{N}) where 1 kg contains N grains.[Negligible correlation for large N]

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There’s not enough information here. What do you know about the distributions?
– Paul
2 days ago

  

 

What distribution does the physical problem indicate?May be binomial.
– Annie
2 days ago

  

 

I would guess based on the answer it is binomial, but I didn’t see that specified.
– Paul
2 days ago

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