ICSE Class 10CISCE
Share
Notifications

View all notifications
Books Shortlist
Your shortlist is empty

Ramesh Chooses a Date at Random in January for a Party. - ICSE Class 10 - Mathematics

Login
Create free account


      Forgot password?

Question

Ramesh chooses a date at random in january for a party. 

 January 
Mon   6 13 20 27
Tue    7 14 21 28
Wed  1 8 15 22 29
Thurs  2 9 16 23 30
Fri  3 10 17 24 31
sat  4 11 18 25  
Sun  5 12 19 26  

Find the probability that the choose:  

(1) a Wednesday 

(2) a friday 

(3) a tuesday or a saturday. 

Solution

Number of possible outcomes= number of day in the month=31 

n(s)=31 

(1) E= event of selection of a Tuesday or a saturday ={1,8,15,22,29} 

n(E)=5 

Probability of selection of a wednesday= `P(s)=(n(E))/(n(s))=5/31` 

E=event of selection of a friday ={3,10,17,24,31} 

n(E)=5 

probability of selection of a friday =`P(s)=(n(E))/(n(s))=5/31 ` 

E=event of seletionn of a tuesday or a saturday ={4,7,11,14,18,21,25,28} 

n(E)=8 

Probability of selection of a Tuesday or a saturday `=P(s)=(n(E))/(n(S))=8/31` 

  Is there an error in this question or solution?
Solution Ramesh Chooses a Date at Random in January for a Party. Concept: Random Experiments.
S
View in app×