The average American generates 4.4 lbs of trash every day. We circulated fliers that listed tips on how to reduce wastefulness in three separate neighborhoods. For the next week, we measured the amount of trash each person produced each day in those neighborhoods. There were 625 people total in our study. The mean trash per person was 4.3 lbs with a standard deviation of 1 Determine your sample's score on the comparison distribution.
a) -2
b) -1
c) -1.5
d) -2.5

And replacing we got:

And the best option would be:

d) -2.5

Step-by-step explanation:

For this problem we know that the true mean of  trash every day is:

And from the info given we also know that:

represent the sample mean

sample size selected

the population standard deviation assumed

If we want to find the z score for the person we can use the following formula:

And replacing we got:

And the best option would be:

d) -2.5

step-by-step explanation:

i think something is missing in your question because y-1=(x-12) would not pass through the point (-4,-3). because if you replace x by -4 your are supposed to find y=-3 which is not the case her. if you replace x by -4 you find =-15.

i assume the right equation is y-1=1/4*(x-12) because this one is passing through both your points (if you are interested to know how i found that out i can tell you).

in this equation if i replace x by -4 i find y=-3 and if i replace x by 12, i find y=1 so the line representing this equation is passing through those 2 points.

then the standard form of the equation is finding an expression of y in function of x

y-1=1/4*(x-12)

y=x/4-3+1

y=x/4-2

hope that .

do you confirm there was a mistake in the question?

my guess is

step-by-step explanation: