Consider experiment of rolling a die. Let A be event 'getting a prime number ', B be event &

English

Gujarati

Hindi

14.Probability

easy

Consider the experiment of rolling a die. Let $A$ be the event 'getting a prime number ', $B$ be the event 'getting an odd number '. Write the sets representing the events $A$ or $B$.

A

$\{1,2,4,5\}$

B

$\{1,2,5\}$

C

$\{1,2,3\}$

D

$\{1,2,3,5\}$

Solution

Here $S =\{1,2,3,4,5,6\}$, $A =\{2,3,5\}$ and $B =\{1,3,5\}$ Obviously

$^{\prime }A$ or $B\,^{\prime}=A \cup B=\{1,2,3,5\}$

Standard 11

Mathematics

Share

Similar Questions

A box contains $1$ red and $3$ identical white balls. Two balls are drawn at random in succession without replacement. Write the sample space for this experiment.

easy

Two cards are drawn from a pack of $52$ cards. What is the probability that one of them is a queen and the other is an ace

easy

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

hard

In a game, a man wins $Rs.\,100$ if he gets $5$ or $6$ on a throw of a fair die and loses $Rs.\,50$ for getting any other number on the die. If he decides to throw the die either till he gets a five or a six or to a maximum of three throws, then his expected gain/loss (in rupees) is

hard

(JEE MAIN-2019)

Three coins are tossed once. Find the probability of getting $3 $ heads

easy