Hello from MrBillDoesMath!
Answer:
a(n) = 12 - 3(n-1) , n = 1,2,3.,,
Discussion:
The terms are 12, 9, 6, 3 so we are apparently subtracting 3 from each succeeding term. . Hence
a(n) = 12 - 3(n-1) , n = 1,2,3.,,
Thank you,
MrB
He answered .85, 85% or 17/20 correct on the test.
Solution :
a). The point estimate of proportion of college graduates among women who work at home,

= 0.3281
99.5% confidence interval



