Answer:
Personal Source
Explanation:
Dora called a friend. Someone who she trusts. She didn't seek information on her sunscreen bottles, the internet, the government, or anything else like that. She just called a friend who she judge to know what she needed to know. It is a person, who happens to be close to her, making <em>personal source </em>the only possible answer in this context.
Answer: b.a categorical variable.
Explanation:
In numerical variables, such as rainfall measured in inches or the number of sales in a day, the numbers have a numerical meaning. But a categorical variable is a category such as gender and national origin. It can be represented as a number, like the Social security number, but the numbers won´t have a numerical value. If your SSN is bigger than mine, it doesn´t mean that you are greater or at a different level on a scale, because the numbers are used as categories, not as mathematically meaningful.
Insurance, if you have mileage limits, preparing for weather, choosing the car.
Answer:
a. Smaller class size is related to better academic performance.
Explanation:
A hypothesis is a testable prediction, a scientific guess of what you expect to happen from a study. There are directional and non directional hypothesis, the directional hypothesis states exactly what you expect such as " smaller class size is related to better academic performance while a non directional hypothesis predicts that there will be an effect but does not specify the direction, example is "smaller class size is related to academic performance".
The option chosen is an example of a directional hypothesis, option b, c, and d are more statements of facts and not hypothesis.
