Describe the sample for the indicated experiment: A coin is tossed and a die is thrown.
A coin has two faces: head $(H)$ and tail $(T)$.
A die has six faces that are numbered from $1$ to $6,$ with one number on each face.
Thus, when a coin is tossed and a die is thrown, the sample is given by : $S =\{H1, \,H 2$, $H3, \,H 4,\, H5$, $H6, \,T1, \,T2$, $T3,\, T4,\, T5, \,T6\}$
In a single throw of two dice, the probability of obtaining a total of $7$ or $9$, is
Two dice are thrown. The probability that the sum of the points on two dice will be $7$, is
Let $A$ be a set of all $4 -$digit natural numbers whose exactly one digit is $7 .$ Then the probability that a randomly chosen element of $A$ leaves remainder $2$ when divided by $5$ is ..... .
If two balanced dice are tossed once, the probability of the event, that the sum of the integers coming on the upper sides of the two dice is $9$, is
Two dice are thrown together. The probability that at least one will show its digit $6$ is