(A) construct a histogram of variable width for the following data
CI 0-10 10-15 15-20 20-30 30-40 40-60 60-70
f 20 15 10 25 5 30 50
(A) construct a histogram of variable width for the following data
CI 0-10 10-15 15-20 20-30 30-40 40-60 60-70
f 20 15 10 25 5 30 50