i need help. i keep getting it wrong

Reyesburg Corporation is contemplating using a new glue in the construction of its laminated veneer lumber. 0f impedance to the company is the carrying load of the lumber. The company has tested 25 beams using the new glue. recording for each beam the pressure [in pounds per square foot) at which the beam broke. The data collected are presented in the following hislggmm. Frequency sec sea son 92D MI] 960 Carrying load (in pounds per square foot) Based on the histogram. draw the pom: {the cumulative frequency polygon} for the Reyesburg data. Cumulative frequency PI 25 20 '5 \\ 10 3.00 than 5 2.00 2.00 \"fit- Cl raf )- 860 330 900 920 940 960 Carrying load {in pounds per square foot}