to know about how people in her state felt about internet privacy issues. She conducted a poll by calling 100 people whose names were randomly sampled from the phone book (note that mobile phones and unlisted numbers aren't in phone books). The senator's office called those numbers until they got a response from all 100 people chosen. The poll showed that 42% of respondents were "very concerned" about internet privacy. What is the most concerning source of bias in this scenario? O Nonresponse bias O Response bias O Undercoverage O Voluntary response sampling QUESTION 7 Which of the data distributions shown below has a higher variability? Distribution A Distribution B :: 0 1 2 3 4 5 6 7 8 9 10 Portland QUESTION 8 The graphs show the various temperatures for the month of January in 2 cities. Which city has a lower variability of their January temperature? er of days umber of days Minneapolis