The size of the bookstore is classi ed as Small, Medium and Large. A double sampling was performed to esti- mate the total sales of a certain book last month in the center county region, which has 500 bookstores. In the 100 book- stores selected randomly in the rst phase, 50 are small, 30 are medium and 20 are large. Suppose a strati ed random sample of 10 small, 6 medium and 4 large bookstores are carried out, the sales of the book title are

if he has no friends he cant give them out to his friends

step-by-step explanation:

no friends = cant give anything out

were is the equation

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?