Suppose that a recent poll found that 69% of adults believe that the overall state of moral values is poor. for 200 randomly selected adults, compute the mean and standard deviation of the random variable x, the number of adults who believe that the overall state of moral values is poor.

8.75

how-to:

first, we need to find what we have to work with.

since i know that we have 7 (years) and 0.8 (inches), we can use these to solve and find the equation!

secondly, what you want to do, is see that we need to know how much growth out of the 0.8 inches he got in only 1 year, instead of 7 years.

let's try to divide.

7 ÷ 0.8 = 8.75

answer is 17

first the equation needs to be simplified. so the equation would now look like:   52-24+11

then you multiply.

and when you multiply, you will get the answer of 39.