A bag contains $3$ white balls, $5$ red balls and $4$ blue balls. A ball is drawn at random from the bag. What is the probability that the ball drawn is of the following type?

Blue

A bag contains $3$ white balls, $5$ red balls and $4$ blue balls. A ball is drawn at random from the bag. What is the probability that the ball drawn is of the following type?

White

A bag contains $3$ white balls, $5$ red balls and $4$ blue balls. A ball is drawn at random from the bag. What is the probability that the ball drawn is of the following type?

Red

A bag contains $3$ white balls, $5$ red balls and $4$ blue balls. A ball is drawn at random from the bag. What is the probability that the ball drawn is of the not white type?

Two coins are tossed simultaneously. Find the probability of getting the two tails as outcome.

Two coins are tossed simultaneously. Find the probability of getting no tail as outcome.

Two coins are tossed simultaneously. Find the probability of getting at least one tail as outcome.

A bag contains one ball known to be either black or white. A black ball is put in and the bag is shaken and a ball is drawn out. What is the probability of the remaining ball being black, if the ball drawn is black?

A bag contains one ball known to be either black or white. A black ball is put in and the bag is shaken and a ball is drawn out. What is the probability of the remaining ball being black, if the ball drawn is white ?