portfolio	return on portfolio	standard deviation of portfolio	beta of portfolio
x	15.50%	36.00%	1.35
y	14.50	31.00	1.15
z	7.40	21.00	.60
market	11.70	26.00	1.00
risk-free	7.00	.00	.00

Assume that the tracking error of Portfolio X is 10.70 percent. What is the information ratio for Portfolio X?(Negative value should be indicated by a minus sign. Do not round intermediate calculations. Round your answer to 4 decimal places.)