Find the mean for the following frequency tables. Grade 49.5–59.5, 59.5–69.5, 69.5–79.5, 79.5–89.5, 89.5–99.5 Frequency 2, 3, 8, 12, 5

A. p = 2(l + w)p/2 - l = ww = p/2 - l b. while isolating the variable w in the equation, i first divided both sides by 2 and then i subtracted l from both sides. i hope this .

D.