Browse by Stream
QnA
Home
QnA
Go To Your Study Dashboard

Get Answers to all your Questions

header-bg qa
  • Home
  • NCERT
  • A die is tossed thrice . Find the probability of getting an odd number at least once.

Q.12   A die is tossed thrice. Find the probability of getting an odd number at least once.

Answers (1)

best_answer

A die is tossed thrice.

Outcomes =\left \{ 1,2,3,4,5,6 \right \}

Odd numbers =\left \{ 1,3,5 \right \}

The probability of getting an odd number at first throw 

                                                                                       =\frac{3}{6}=\frac{1}{2}

The probability of getting an even number 

                                                                          =\frac{3}{6}=\frac{1}{2}

Probability of getting even number three times 

                                                                         =\frac{1}{2}\times \frac{1}{2}\times \frac{1}{2}=\frac{1}{8}

The probability of getting an odd number at least once = 1 - the probability of getting an odd number in none of throw

                                                                                       = 1 - probability of getting even number three times 

                                                                                       =1-\frac{1}{8}

                                                                                       =\frac{7}{8}

Posted by

seema garhwal

View full answer

Crack CUET with india's "Best Teachers"

  • HD Video Lectures
  • Unlimited Mock Tests
  • Faculty Support
cuet_ads

Similar Questions

Trending Articles/News

anam-khan

PM Modi's Pariksha Pe Charcha 2025 to be held next month, registrations open till January 14
anam-khan

CBSE Board Exams 2025: Online portal for availing exemptions by CWSN students opens
anam-khan

Board Exams: States agree to equivalence; no question paper ‘jumbling’ from next year, says PARAKH CEO

Latest Question