Flower B is less expensive
Hope this Helps (:
Answers:
- Graph B
- Choice C) y = 0.13x - 0.19
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Explanations:
- Notice how all of the points in graph B are near to a single line. This is the regression line. We don't have every point on the same line, but it's close enough. Graph A seems to suggest an exponential growth curve could work as the regression curve. Graph C seems to be randomly scattered points, so perhaps no function would work as the regression curve.
- I used technology to get the regression line. Specifically, I used GeoGebra. Any spreadsheet program or graphing calculator should be able to find the regression line. You can do so by hand, but I don't recommend it because it's tedious busy work in my opinion.
120 x 10= 1200
can be a solution, but there are many other ways
There are 52 cards in a standard deck and 13 cards with spades among them.
Probability: ( 13 C 2 * 39 C 4 ) / ( 52 C 6 ) =
=
