b. Construct a frequency histogram. Make sure to use appropriate and labeled axis. 8. In our class, your grade is weighted. Your test average counts for 50% of your grade, your lab average counts for 20% of your grade, your homework average counts for 15% of your grade, and your attendance and class participation counts for the remailing 15% of your grade. Find your weighted average if your test average is a 78%, your lab average is a 88%, your homework average is a 70%, and your attendance average is a 85% 80-3 - 8o-3 50(0.78) = 39 20 (0.88) = 17.6 6 + 80.3 15 (0.7) = 10.5 15 (0.85= 13.212.78