To solve Portfolio, Stocks, Returns, Risk, Beta, CAPM and other finance-related problems using your TINSPIRE CX download the comprehensive
PORTFOLIO & STOCKS app at https://www.tinspireapps.com/?a=PIME .
You will get Step by Step and always correct Solutions on your handy TiNspire , watch the video below for more details.
A good start is to test the free trial first , download it at https://www.tinspireapps.com/trials/