Does there appear to be a confounding variable in this situation? To determine the effectiveness of new synthetic oil, the oil is testing in 30 new Toyota Camrys (treatment group) while 30 new Honda Civics are given regular oil. Yes
No

Toyland is having a sale. all items are 20% off. how much will you save on an item that usually sells for 95$ explain your

You are on a cycling trip around europe with friends. you check the weather forecast for the first week. these are the temperatures for the week. sun mon tues wed thurs fri sat 16°c 20°c 24°c 28°c 28°c 23°c 15°c what is the mean temperature forecast for the week?

Each person in an it department of 25 people works on at least one of 3 major projects: system security, program implementation, platform development. 10 people work on system security, 13 work on program implementation, and 12 work on platform development. 4 people work on system security and platform development, 5 people work on program implementation and platform development, and 2 people work on all three projects. how many people work on system security and program implementation?