Three coins are tossed once. Find the probability of getting at most two tails.

$A$ number is chosen at random from the first ten natural numbers. The probability that the number is odd and a perfect square is

An experiment consists of rolling a die and then tossing a coin if the number on the die is even. If the number on the die is odd,the coin is tossed twice. Write the sample space for this experiment.

Three coins are tossed simultaneously. Consider the events $E$: 'three heads or three tails',$F$: 'at least two heads',and $G$: 'at most two heads'. Of the pairs $(E, F)$,$(E, G)$,and $(F, G)$,which are independent and which are dependent?

Three coins are tossed together,then the probability of getting at least one head is

$A$ die is thrown. Find the probability of the following event: $A$ number less than $6$ will appear.