The probability of getting a bad egg in a lot of $400$ eggs is $0.035$. The number of bad eggs in the lot is:

$A$ bag contains a red ball,a blue ball and a yellow ball,all the balls being of the same size. Kritika takes out a ball from the bag without looking into it. What is the probability that she takes out the
$(i)$ yellow ball?
$(ii)$ red ball?
$(iii)$ blue ball?

Three balanced coins are tossed simultaneously. Find the probability of receiving at least two heads.

One number is selected at random from one-digit natural numbers. The probability of that number being even is $\ldots \ldots \ldots$

$A$ card is drawn at random from a well-shuffled pack of $52$ cards. The probability that the card drawn is an ace of a red suit is ...........

An unbiased coin is tossed thrice. The probability of getting a tail all three times is ...........