Anews reporter surveyed 20 new orleans residents and asked if they planned to evacuate due to impending hurricane. she randomly selected 20 people out of the phone book. what part of the field of statistics is this?

Inferential statistics

Explanation:

Inferential statistics is when you take a sample of a population to try to estimate certain values such as the mean of the population (using the mean of the sample in this case). On the other hand, descriptive statistics are used to describe a data set, not to estimate values or probabilities. Since she took a random sample of the population, she is aplying is inferential statistics.

Data collection (focus group)

Step-by-step explanation the method by which data use for statistics are collected, arranged and analyse. In the sample a focus group is target for questioning about their wilingness to relocate, this will like my be a quantitative analysis to determine the number of people leaving or not leaving

  or  

step-by-step explanation:

if the four friends split the cost, p, of the pizza evenly, then each friend pays one-fourth of the cost of the pizza.

the expression is   or  

step-by-step explanation: