Use the data from the following four stocks to answer the questions below:

	Yields
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%

a. Classify the correlations between each pair of stocks as positive correlation (PC), perfectly positive correlation (PPC), negative correlation (NC), perfectly negative correlation (PNC), and no correlation (NOC):

TLS DI ___________ DI PFE __________

TLS PFE __________ DI WMT _________

TLS WMT _________ PFE WMT _________