Acracker manufacturer wants to know how a new cracker she wants to make compares to the competition, so she has people in a sample of supermarkets across the country ask people to compare three crackers: one of her crackers and two competing crackers. this is an example of what kind of statistical study? \

1.experiment
2.observational study
3.survey

I believe the answer would be survey seeing as other people would be trying all three and comparing one to the other two

This is an example of SURVEY.    

Survey can be defined as a method where a lot of information is gathered from a sample of people with respect to a larger population to generalize some result.    

Here, the manufacturer is surveying about the comparison of three crackers by asking people in supermarkets.  

mathpapa

step-by-step explanation:

since no one answered yet i will give it a shot, not completely sure tho.

i think it should be y=cos(x+2pi), (third answer, answer c)

good luck.