web2.0calc
 
+0  
 

 Making Fair Decisions Based on Probability

+5
925
3
avatar+961 

Horatio wants Guildenstern to stop going through his phone. Guildenstern has agreed to do so if the last two digits of the next phone number he pulls up form a number that is greater than 49.

Is this a fair method for Guildenstern to decide to stop flipping the coin? Why or why not

 Jan 9, 2015

Best Answer 

 #3
avatar+118687 
+10

2 is the best answer   :)

 Jan 10, 2015

3+0 Answers

 #1
avatar+118687 
+10

Hi Shaniab :)

 

Well I think that Guildenstein should stop going into Horatio's phone and that there should be no bet!!! LOL

 

When will  the last 2 digits be greater than 49

Well, the second last digit can be 5,6,7,8 or 9    That is 5 choices

and the last digit can be anything at all.

P(last 2 digits are great than 49)= (5/10)*1 = 0.5

 

So yes this has the same odds as a fair coin toss.   

Does that answer the question?

 Jan 9, 2015
 #2
avatar+961 
+5

 no because  it is a Multiple  choice question ia m so sorry i left that out i feel awful

  1. It is a fair method because it leaves things up to chance.
  2. It is a fair method because there is a 50% chance that the number will be over 49. 
  3. It is not a fair method because he has already gone through several numbers that will not appear again.
     

 Jan 9, 2015
 #3
avatar+118687 
+10
Best Answer

2 is the best answer   :)

Melody Jan 10, 2015

1 Online Users

avatar

Top Users

avatar+129899 CPhill moderator
avatar+37153 ElectricPavlov
avatar+33661 Alan moderator
avatar+15000 asinus moderator
avatar+2511 GingerAle
avatar+2499 Solveit
avatar+1938 NotThatSmart
avatar+1557 parmen
avatar+1521 blackpanther
avatar+1455 kittykat
avatar+1310 learnmgcat

Sticky Topics