The minimum value of the probability of any event is ...........

The maximum value of the probability of any event is ...........

The probability of an impossible event is ........

There are $16$ girls in a class of $40$ students. If a student is randomly selected and made a class representative, find the probability that a boy is selected.

An insurance company selected $1600$ drivers at random in a particular city to find a relationship between age and accidents. The data is as below:

Age group of drivers	Number of accidents in one year $(0, 1, 2, 3, >3)$
$18-25$	$320, 125, 75, 45, 30$
$25-40$	$400, 45, 50, 15, 10$
$40-55$	$150, 85, 13, 8, 10$
Above $55$	$150, 25, 17, 20, 7$

Find the probability of the following event for a driver selected at random from the city: being $25-40$ years of age and having exactly $2$ accidents in a year.

The probability of an event of a mango growing on an acacia tree is ..........