We are planning an experiment to see whether the new pet food is safe for dogs to eat. We will feed some animals the new food and others a food known to be safe, comparing their health after a period of time. In this experiment, how will you implement the principles of control, randomization, and replication?

Which of the following are parts of a sphere

What is the graph of the function fx x+2/x-3?

Which of the following are independent events? a) knowing that it is going to rain tomorrow, and bringing an umbrella to schoolb) knowing that you have to get up early tomorrow, and going to bed before 9 p.mc) knowing that it is going to rain tomorrow, and going to bed before 9 p.md) knowing that you have a test in school tomorrow, and studying thw night before