Table $3\mathrm{.}2$

$\backslash$table$[[$Sample Number,Number Defective$],[1,1],[2,4],[3,2],[4,4],[5,0]]$

Samples of $100$ checks each were taken at a bank from an encoding machine $($which records the amount of a check$)$ over a five$-$day period. Details are summarized in Table $3\mathrm{.}2.$ If the bank were to use the average proportion defective from these five samples as the central line for a process control chart, what would be the central line?

greater than $0\mathrm{.}03$

greater than $0\mathrm{.}01$ but less than or equal to $0\mathrm{.}02$

greater than $0\mathrm{.}02$ but less than or equal to $0\mathrm{.}03$

less than or equal to $0\mathrm{.}01$