Mathematics, 22.02.2021 03:10, dondre54
A home-improvement store offers a new brand of lawn food that claims to reduce the number of weeds by 30% over a different brand of lawn food. To test the claim, a homeowner plans to use the new brand of lawn food on half of his lawn and the original brand on the other half. The homeowner will count the number of weeds that appear after a month on each half of the lawn. A neighbor explains that there may be confounding variables, such as shade, that might also explain the relationship. Which statement best describes the effect of the confounding variables? Because of confounding variables, the homeowner should only put the new lawn food on shady spots and the original brand on sunny spots. Because shade is a primary cause of weed growth, the brand of lawn food used in shady or sunny spots will not affect the number of weeds. If the half of the lawn with the new lawn food shows fewer weeds after a month, this will prove the new lawn food is better at stopping weed growth. The parts of the lawn that receive the new lawn food may also get more shade than other parts of the lawn, and the shade might also cause fewer weeds.
Answers: 2
Mathematics, 21.06.2019 14:00, enriquerer12
Ataxi cab charges $1.75 for the flat fee and $0.25 for each time. write an in equality to determine how many miles eddie can travel if he has $15 to spend.
Answers: 1
Mathematics, 21.06.2019 18:50, millernicholas622
The random variable x represents the number of phone calls an author receives in a day, and it has a poisson distribution with a mean of 8.7 calls. what are the possible values of x
Answers: 1
Mathematics, 21.06.2019 22:00, cxttiemsp021
Melanie is buying a bathing suit that costs 39.99. she is given a discount at the cash register of $6.00 when she scratched 15% off on a game piece for a store promotion. what will the sale price of melanie’s bathing suit be?
Answers: 1
Mathematics, 22.06.2019 00:00, rebeckas0102
To convert celsius temperatures to fahrenheit, you can use the expression (c + 32). tom says that another way to write this expression is c + 32. what error did tom make?
Answers: 3
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