On tossing two coins simultaneously,find the probability of getting no tail.

The distribution of the weights of $50$ students in a class is as follows:

Weight (in $kg$)	Number of students
$50-52$	$10$
$52-54$	$12$
$54-56$	$13$
$56-58$	$9$
$58-60$	$6$

Find the probability that a student selected at random weighs $56 \ kg$ or more.

$50$ families with $2$ children were selected randomly and the following data were recorded:

Number of girls in a family	$0$	$1$	$2$
Number of families	$10$	$32$	$8$

If a family is chosen at random,compute the probability that it has: $(1)$ two girls,$(2)$ one girl,$(3)$ no girl.

Find the probability that there is a Sunday on $26$ January in any given year.

The probability of the event 'the sun rises in the east' is .............

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