Assays A and B were performed on the same check sample. The calculated means and standard deviations are given below. The true mean for the check sample was $23\mathrm{.}5.$ Comment on the accuracy and precision of the two assays and discuss the type of error represented by this example. $(5$ marks$)$

Assay A

mean $=23\mathrm{.}44$

standard deviation $=0\mathrm{.}11$

Assay B

mean $=25\mathrm{.}89$

standard deviation $=0\mathrm{.}11$