3.29 Averages from Grouped Data

Age	# Employees	CF
20-24	40
25-29	60
30-34	200
35-39	180
40-44	150
45-49	110
50-54	175
55-59	60
60-64	25

Median: \(Me = L + \frac{\frac{n}{2}-F_c}{f_m}\times c\)

Mode: \(M_o=L+\frac{\Delta_1}{\Delta_1+\Delta_2}\times c\)

Quartiles: \(Q_i = L + \frac{\frac{in}{4}-F_c}{f}\times c\)

Find AM, Me, Mo, Q, and \(P_{30}\)