adding procentages

[NickBlack]

i know this is a more general math question then a specific Coding question, but it's for my EA

is there a way to add together chances eg

Prediction 1 predicts that there's a %55 chance the next candle will be going up

Prediction 2 says there's a 53 chance it will go up

and prediction 3 says there's a %55 chance of it going down. 

would I simply add all the percentages together eg. 55+53+45 (if it's a 55 chance to go down that must mean 45 chance of up) then divide it by the number of predictions made to get an average?

or is there a better way of adding the percentages together? (this case %51 chance of it going up)

thanks. 

[rocketman99]

Try:

http://www.stat.berkeley.edu/~bradluen/stat2/lecture16.pdf 

[William Roeder]

nickblack: or is there a better way of adding the percentages together? (this case %51 chance of it going up)

straight average as you posted or Median or possibly Weighted mean. You define best.