$A$ bag contains $5$ black balls, $4$ white balls, and $3$ red balls. If a ball is selected at random, the probability that it is a black or red ball is

An anti-aircraft gun can take a maximum of $4$ shots at an enemy plane moving away from it. The probabilities of hitting the plane at the first,second,third,and fourth shots are $0.4, 0.3, 0.2,$ and $0.1,$ respectively. What is the probability that the gun hits the plane?

$A$ committee of $5$ members is to be formed from $6$ men and $4$ women. The probability that at least one woman is present in the committee is

Three cards are drawn at random from a pack of $52$ cards. What is the chance of drawing three aces?

The probability that a man will be alive $25$ years hence is $0.3$,and the probability that his wife will be alive $25$ years hence is $0.4$. Find the probability that $25$ years hence,only the woman will be alive.

An urn contains $25$ balls numbered $1$ to $25$. Suppose an odd number is considered a 'success'. $2$ balls are drawn from the urn with replacement. Find the probability of getting at least one success.