The school board is trying to evaluate a new math program introduced to second$-$graders in five elementary schools across the county this year. A sample of the student scores on standardized math tests in each elementary school yielded the following data:

$\backslash$table$[[$School$,$No$.$ of Test Errors$],[$A$,75],[$B$,38],[$C$,42],[$D$,47],[$E$,61]]$

For the test errors, the c$-$chart with control limits that contain $99\mathrm{.}73\%$ of the random variation in test scores is:

$UC{L}_C=$ erjors $(round$ your response $to$ two decimal places$).$