In 2000, there were an estimated 5.28 million digital cable subscribers in the United States. The expected increase is 2.61 million by 2006. On average, over each of those 6 years how many new digital cable subscribers per year would be expected?
a.
1.315 million per year
c.
0.88 million per year
b.
0.435 million per year
d.
0.445 million per year