Performances
Year	TLS	DI	PFE	WMT
20x5	12.00%	4.50%	5.80%	11.30%
20x6	13.30%	5.30%	5.70%	9.00%
20x7	10.20%	3.10%	5.90%	13.90%
20x8	9.30%	2.70%	4.50%	14.80%
20x9	8.60%	1.90%	6.30%	15.00%

1. Classify the correlations between each pair of actions as positive correlation (CP), perfectly positive correlation (CPP), negative correlation (CN), perfectly negative correlation (CPN) and no correlation (SC):

TLS DI ___________ DI PFE __________

TLS PFE __________ DI WMT _________

TLS WMT _________ PFE WMT _________

2. Which three of the four actions would you combine to build a diversified portfolio and why? It starts from the premise that there is an equal distribution of investment (33.3%) among the selected shares.
3. Calculate the return, risk and coefficient of variation for the portfolio of three stocks selected in the previous exercise. It starts from the premise that there is an equal distribution of investment (33.3%) among the selected shares.