What is the probability of the sun setting tomorrow?

The probability that it will rain tomorrow is 0.85. What is the probability that it will not rain tomorrow?

If the probability of raining tomorrow is 0.75, then the probability that it will not rain tomorrow is :

If the probability of raining tomorrow is 0.75, then the probability that it will not rain tomorrow, is:

Two sets of candidates are competing for the position on the board of directors of a company. The probabilities that the first and second sets will win are 0.6 and 0.4 respectively. If the first set wins, the probability of introducing a new product is 0.8 and the corresponding probability if the second set wins is 0.3. What is the probability that the new product will be introduced ?

What is the escape speed of the Sun ?

What is the probability that a human individual would receive the entire haploid set of chromsomes from his her grandfather ?