Complete the recursive formula of the arithmetic sequence 4, 22, 40,
b(1) =
b(n) = b(n - 18+

Step-by-step explanation:

Given

Probability that an inspector doe not identify  low-quality timber=0.20

(a)Probability that both inspector do not identify a low quality timber

(b)Let n be the no of inspector

Probability should be less than  1%=0.01

so

Taking both sides

x>2.861

thus minimum value of x is 3

(c)From part b it is clear that minimum 3 officer are required to to keep the low  quality timber below 1%

on an average 2 officer are not sufficient to identify 4 low quality timber out of 100