Mrs. Robbins represented the tubs of cookie dough each student sold for the class
fundraiser in a dot plot and concluded that the mean was 8.5 when rounded to the
nearest tenth. Then she noticed that she had forgotten to include two students' sales in
the chart. The students sold the same amounts. What sales did she forget? Use a
problem-solving model to solve. TEKS 6.12(A), 6.12(C)
Cookie Dough Tubs
Sold per Student
..
.
5-3 cookie
6 -2cookie
7 -1cookie
8 -5cookie
9 -4cookie
10 -1cookie
11 -2cookie
12-1cookie