There are 100 eggs in a box. If 10% of the eggs are rotten, then the number of rotten eggs are ____.
In a box containing 100 eggs, 10 eggs are rotten. The probability that out of a sample of 5 eggs none is rotten if the sampling is with replacement is
[MP PET 1991;
MNR 1986; RPET 1995; UPSEAT 2000]