SOLUTION: For a group of 40 people, what is the probability that exactly three people in the group will celebrate their birthdays on a Wednesday this year
Algebra.Com
Question 306869: For a group of 40 people, what is the probability that exactly three people in the group will celebrate their birthdays on a Wednesday this year
Answer by scott8148(6628) (Show Source): You can put this solution on YOUR website!
this is a binomial problem ___ probability of Wed is 1/7 ___ probability of not Wed is 6/7
for 3 people out of 40 ___ p = (40C3)[(1/7)^3][(6/7)^37]
RELATED QUESTIONS
The most common human blood group is O which is estimated to be 45% in US population. If... (answered by Boreal)
The national passing rate for a drivers test is approximately 44%. What is the... (answered by Fombitz)
In this question, answer to at least 3 decimal places accuracy.
Data shows that 86% of... (answered by stanbon)
Data shows that 90% of the people in a certain population are right-handed. A group of 8... (answered by Fombitz)
The national passing rate for a drivers license is approximately 45%.what is the... (answered by ewatrrr)
In a group of 20 people, how long will it take each person to shake hands with each of... (answered by jorel555)
From a group of 7 people, you randomly select 3 of them.
What is the probability that... (answered by josmiceli,ikleyn)
From a group of 11 people, you randomly select 4 of them. What is the probability that... (answered by ikleyn)
30% of the students on campus bring their textbook to class with them. In a random group... (answered by stanbon)