abelkoontz Posted August 19, 2016 Report Share Posted August 19, 2016 (edited) So for my IA im predicting the most likely to win become president based on their age. So i worked out the mean and standard deviation in order to draw the normal distribution curve. both clinton and trump are within one probability area of 2.15%. How can i accurately find their probability since they are only one year apart (before i had sanders for more variety but hes gone so :/) SO I USED P(X < 69) and P(X<70) i'm not sure how to do it, like how do i find just the probability for one age and not P (50<X<60) or something?? because i can't do P(X=69) Edited August 19, 2016 by abelkoontz Reply Link to post Share on other sites More sharing options...
kw0573 Posted August 19, 2016 Report Share Posted August 19, 2016 Don't think of an age as a discrete quantity, you should think that people can be 69.1 years old, 69.436 years, or 69.88888 years old. Reply Link to post Share on other sites More sharing options...
abelkoontz Posted August 19, 2016 Author Report Share Posted August 19, 2016 Just now, kw0573 said: Don't think of an age as a discrete quantity, you should think that people can be 69.1 years old, 69.436 years, or 69.88888 years old. sO HOW do i do this Reply Link to post Share on other sites More sharing options...
IB Math Helper Posted August 19, 2016 Report Share Posted August 19, 2016 (edited) Why not narrow the range even further? For example, for the age of 69, find P(69.01<X<69.99). I suspect the probabilities of both will be too small to indicate a significant difference considering how close in age they are. Edited August 19, 2016 by IB Math Helper Reply Link to post Share on other sites More sharing options...
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