Three students (Hasmita, Roberto and Lynette) are measuring the density of aluminum, which has an accepted value of 7.87 g/mL. Each student performs four trials. Their results are on the table below.

	Hasmita	Roberto	Lynette
Trial #1	8.89 (g/cm3)	6.48 (g/cm3)	7.88 (g/cm3)
Trial #2	8.90 (g/cm3)	8.15 (g/cm3)	7.87 (g/cm3)
Trial #3	8.91 (g/cm3)	7.12 (g/cm3)	7.86 (g/cm3)
Trial #4	8.89 (g/cm3)	7.89 (g/cm3)	7.90 (g/cm3)

Classify each students values according to their accuracy and precision.

Hasmita's values are:

Roberto's values are:

Lynette's values are:

Which student's values show systematic error?