I promise a FAN AND A MEDAL!!!!!! Sarah is testing different types of planting soil to determine which type is most effective in growing blueberry bushes. She purchases two different brands of planting soil from a local store. Sarah applies Brand A to 1 area of the yard and Brand B to another area of the yard, both of which receive full sunlight. She waters the area with Brand B daily; she waters the area with Brand A every other day. At the end of the study, Sarah concludes Brand B is more effective in growing blueberry bushes. Why is her conclusion not valid

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I promise a FAN AND A MEDAL!!!!!! Sarah is testing different types of planting soil to determine which type is most effective in growing blueberry bushes. She purchases two different brands of planting soil from a local store. Sarah applies Brand A to 1 area of the yard and Brand B to another area of the yard, both of which receive full sunlight. She waters the area with Brand B daily; she waters the area with Brand A every other day. At the end of the study, Sarah concludes Brand B is more effective in growing blueberry bushes. Why is her conclusion not valid

Mathematics
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what are the options?
it says that she watered the brand B plant every single day while she only watered the brand A plant every other day - if she wants to compare how Brand A and Brand B are different, she needs to give each plant the same amount of water (this process is called "controlling for variables")
so her conclusion is not valid because she needs to give each plant the same amount of water

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yeah, pretty much
can you help me with another question
sure
Julia enjoys shooting paper balls into the wastebasket across her office. She misses the first shot 50% of the time. When she misses on the first shot, she misses the second shot 20% of the time. What is the probability of missing two shots in a row
probability of missing two shots = (probability of missing first shot)*(probability of missing second shot) = (0.5)*0.2
0.1 or 10%
excellent, good job
169 is the square of 13

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