ICSE Class 10CISCE
Share
Notifications

View all notifications
Books Shortlist
Your shortlist is empty

Two Dice Are Thrown Simultaneously. What is the Probability That: 4 Will Not Come up Either Time? 4 Will Come up at Least Once? - ICSE Class 10 - Mathematics

Login
Create free account


      Forgot password?

Question

Two dice are thrown simultaneously. What is the probability that: 

4 will not come up either time?  

4 will come up at least once?

Solution

When two dice are thrown , total possible outccomes=36 

Favorable outcomes for 4 will not come up either time: 

{(1,1)(1,2)(1,3)(1,5)(1,6)} 

{(2,1)(2,2)(2,3)(2,5)(2,6)} 

{(3,1)(3,2)(3,3)(3,5)(3,6)} 

{(5,1)(5,2)(5,3)(5,5)(5,6)} 

{(6,1)(6,2)(6,3)(6,5)(6,6)} 

Number of favorable  outcomes = 25 

p(4 will not come up) = 25/36 

P(4 will come up ones) = 1- p(4 will not come up either time) 

p(4 will come up once) = `1-25/36` 

p(4 will come up once) = (36-25)/36=11/36

  Is there an error in this question or solution?
Solution Two Dice Are Thrown Simultaneously. What is the Probability That: 4 Will Not Come up Either Time? 4 Will Come up at Least Once? Concept: Probability - A Theoretical Approach.
S
View in app×