Please explain 2a-c as well as 3a-b

2. For each of the following, discuss the nature of the data production process. What features does it have that may compromise its quality? a) A journalist in Syracuse wanted to learn whether more people are "dog people" or "cat people" in our community, i.e. whether people have a preference across the two kinds of pets. He interviewed people he found walking down the sidewalks, and determined that there are more "dog people" than "cat people" here. b) National Public Radio at times has been accused of being biased in a liberal direction, However, a survey of listeners revealed that they think the coverage is centrist and even too conservative at times. c) A survey is sent to students via email at a university to try to find out what methods of communication work best for students (email, phone, texting). It finds that students have a preference for email. 3. People in surveys tend to underreport their participation in social assistance programs. Suppose that the probability of actually participating is 20%, but based on survey data, the probability appears to be only 15%. (Assume no one reports that they are a participant if they aren't, but some people report they aren't participating even when they are). a) Suppose you survey a simple random sample of 200 respondents. How many of them would you expect to report being participants in social assistance, and how many would you expect are actually receiving social assistance? b) What is the probability that a person who participates actually reports their participation