A number is chosen from first $100$ natural numbers. The probability that the number is even or divisible by $5$, is
$\frac{3}{4}$
$\frac{2}{3}$
$\frac{4}{5}$
$\frac{3}{5}$
Describe the sample for the indicated experiment: A coin is tossed and a die is thrown.
The probability that a teacher will give an unannounced test during any class meeting is $1/5$. If a student is absent twice, then the probability that the student will miss at least one test is
Three coins are tossed once. Find the probability of getting atleast $2$ heads.
The probability of drawing a white ball from a bag containing $3$ black balls and $4$ white balls, is
Two integers $\mathrm{x}$ and $\mathrm{y}$ are chosen with replacement from the set $\{0,1,2,3, \ldots ., 10\}$. Then the probability that $|x-y|>5$ is: