$A$ bag contains $3$ white and $5$ black balls. If one ball is drawn, then the probability that it is black, is

Three $6$-faced dice are thrown together. The probability that no two dice show the same number on them is

$A$ binary number is made up of $16$ bits. The probability of an incorrect bit appearing is $p$ and the errors in different bits are independent of one another. The probability of forming an incorrect number is

From a pack of playing cards,three cards are drawn simultaneously. The probability that these are one king,one queen,and one jack is:

Cards are drawn one by one without replacement from a pack of $52$ cards. The probability that $10$ cards will precede the first ace is

Two persons each make a single throw with a die. The probability they get equal value is ${p_1}$. Four persons each make a single throw and the probability of three being equal is ${p_2}$,then: