Suppose that a company selects two people who work independently inspecting two-by-four timbers. their job is to identify low-quality timbers. suppose that the probability that an inspector does not identify a low-quality timber is 0.20. (a) what is the probability that both inspectors do not identify a low-quality timber? (b) how many inspectors should be hired to keep the probability of not identifying a low-quality timber below 1%? (c) interpret the probability from part (a).

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

answer: the answer is one of

step-by-step explanation:   we are given to write a proper fraction where the whole is divided into an even number of equal parts less than ten, and an odd number of those parts exist.

an even number less than 10 may be one of 2, 4, 6 or 8. so, the whole may be one of these four evens.

now, an odd number of these parts must exist, so the numerator must be an odd number, one of 1, 3, 5 or 7. it cannot be 9 because then the fraction will become improper.

thus, our fraction may be one of the following

the equation cos(35) =a/25 can be used to find the length of bc what is the length of bc? round to the nearest tenth

step-by-step explanation: