is there an error and what is the type of error?

1.15 10. Answer the below questions. (a) Compute the tracking error from the following information: Portfolio A's Lehman Aggregate Bond Month 2001 Return Index Return (%) January 2.15 1.65 February 0.89 -0.10 March 0.52 April -0.47 -0.60 May 1.71 0.65 June 0.10 0.33 1.04 2.31 August 2.70 1.10 September 0.66 1.23 October 2.15 2.02 November -1.38 -0.61 December 0.59 -1.20 (b) Is the tracking error computed in part) a backward-looking or forward-looking tracking crror? July