Gina wants one kind of yogurt and one kind of topping. she can choose lemon, lime or vanilla yogurt. for the toppings, she can choose berries, granola, nuts or peaches. explain how gina can find the number of possible combinations

Identify all the cases where non-probability sampling is used when attempting to study the characteristics of a large city. studies on every subject in the population divide a population in groups and obtain a sample studies with a limited amount of time demonstrate existing traits in a population studies with the nth person selected