really easy probability question i need answered. (1 Viewer)

[Chris.]

The chance that arthur will survive is 0.82. The chance that Jenny will survive is 0.53. What is the chance that exactly one of them will survive?

please show the working out!

 

[watatank]

arthur survives = 0.82, die = 0.18
jenny survives = 0.53, die = 0.47

to answer the question you hav to consider two cases:

arthur survives and (so you multiply probabilities if its an and condition) jenny dies or (add proabilities if its an or condition) jenny survives and arthur dies.

0.82*0.47 + 0.53*0.18 = 0.4808

sorry im kind of in a rush, hope you followed that! :wave:

 

[Vagabond]

Way to go on cheating on your UNSW Quantitive Methods quiz...

 

[watatank]

hahaha i thought it was weird the OP was a 06'er