A bag contains $3$ white and $5$ black balls. If one ball is drawn, then the probability that it is black, is
$\frac{3}{8}$
$\frac{5}{8}$
$\frac{6}{8}$
$\frac{{10}}{{20}}$
Six boys and six girls sit in a row randomly. The probability that the six girls sit together
$3$ numbers are chosen from first $15$ natural numbers, then probability that the numbers are in arithmetic progression
Find the probability that when a hand of $7$ cards is drawn from a well shuffled deck of $52$ cards, it contains $3$ Kings.
A bag contains $6$ white, $7$ red and $5$ black balls. If $3$ balls are drawn from the bag at random, then the probability that all of them are white is
A fair coin is tossed $100$ times. The probability of getting tails an odd number of times is