Got Homework?
Connect with other students for help. It's a free community.
Here's the question you clicked on:
 0 viewing
I have a statistics question. The question is attached in the following reply.
 2 years ago
 2 years ago
I have a statistics question. The question is attached in the following reply.
 2 years ago
 2 years ago

This Question is Closed

xEnOnnBest ResponseYou've already chosen the best response.0
The question is in the image.
 2 years ago

eigenschmeigenBest ResponseYou've already chosen the best response.1
so we know that the average judge would have been 1 of 5 children, so the total number of brothers and sisters he had would add up to 4 , to make 5 including himself now since its equally likely to have a boy or a girl , that means on average half the children would be male and half would be female in total there would be 5/2 = 2.5 males and 5/2 = 2.5 females since all judges were men that means that the average judge would be male, and we have to take 1 from 2.5 to work out how many brothers he has: making it so he has 2.5 sisters and (2.5  1) = 1.5 brothers
 2 years ago

xEnOnnBest ResponseYou've already chosen the best response.0
oh wow...I didn't know I could just minus from the expected value when I have a confirmed observation (the judge himself in this case). thank you so much!! :)
 2 years ago
See more questions >>>
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.