Instructions: select the correct answer.
annette wants to find out which of two toothpaste brands people living in the town of springville prefer, brand a or brand b. she uses a random sample to make this generalization: 60% of the population of springville prefers brand a over brand b. for which random sample would this generalization be valid?
a.) every third person who walks into one of the neighborhood convenience stores, which stocks several toothpaste brands
b.) every fourth student who attends annette’s school in springville
c.) every other customer at all the convenience stores in springville that stock both brand a and brand b
d.) every mother who shops at a convenience store in springville

sine

step-by-step explanation:

for the friend request.

when a figure, such as triangle (xyz) is reflected over the line y = x to create x'y'z' the x-coordinates and y-coordinates of the original image (pre-image) will be reversed for the image. (e.g., (x, y) > (y, x)) this means that the pre-image position of the x- and y-coordinates switch places which in turn provides a mirror like image of the original xyz.  

i notice that when i draw a line segment from x to x', that the points are parallel from each other -- they are exactly across from each other and do not intersect with any other points.  

yes, think i would see the same characteristic if you drew the line segment connecting y with the reflecting line and then y' with the reflecting line because of the essence of reflections. because it is a mirror image, each point was effected the same way which leads me to conclude that they same would apply to y and y'.