+0

Making Fair Decisions Based on Probability

+5
363
3
+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
+97576
+10

2 is the best answer   :)

Jan 10, 2015

3+0 Answers

#1
+97576
+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
+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
+97576
+10
Best Answer

2 is the best answer   :)

Melody Jan 10, 2015

New Privacy Policy

We use cookies to personalise content and advertisements and to analyse access to our website. Furthermore, our partners for online advertising receive information about your use of our website.
For more information: our cookie policy and privacy policy.