there r 100 people who buys juice
if v take 500 random sample we find 75 people who buys juice
then how many random sample they need 2 find remaining 25
buyers
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Answer Posted / shashank
Since we have to find the REMAINING 25 people who buy juice, we can consider that we have to find all the 100 people. Out of these 100 people, we already have it in the question that out of 500 people 75 people buy juice.
This was of the probability 3/4.
Now to find the remaining people, whose probability is 1/4. Simply, 1/4*500 = 125.
Now, since the remaining 25 people were not found in the initial 500 and assumed to be found in the 125 lot,
we can add 500 to 125.
Thus, we get 625.
;)
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