An online survey on a vegetable gardening website found that respondents who planted after April 1 had greater yields than those who planted before April 1. Describe why this survey is an
example of an observational study and not an experiment. Do you think there might be a bias? If
so, why?

alot

step-by-step explanation:

its a wood chuck that can chuck wood

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step-by-step explanation:

1 3 5

step-by-step explanation:

i took the test: )

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'.