Anita,Sita,Gita and Rita are four friends.what is the probability that in a non-leap year...

1.all will have same birthday

2.their birthdays fall on the month of october

3.their birthdays fall on the 10th day of the months

4.their birthdays fall on the months of january or february...

plz reply fast...exms tmrw

1. 1/(365)4= 1/365x365x365x365
2. 1/(12)4
3. 1/(12)4
4. 
1/(6)4
 
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