the probability that a flood of a specified magnitude occurs

the probability that a flood of a specified magnitude occurs in any 1 year is 0.1. whta is the probability that in the next 10 years a) exactly two such floods will occurs. b) nom more than one such flood will occur, c) no such floods will occur, d) at least three but no more than six such floods will occur?

i got 0.0043 for the first part.