Which statement regarding biased sampling is false?
Answer
Online sampling is biased because only the people who happen to visit the web site will take the survey.
A radio call-in survey is biased because only people who feel strongly about the topic will respond.
A survey handed to every third person leaving a library is biased because everyone leaving the library was not asked to participate.
Asking for experts to take a survey is biased because they may have particular knowledge of the topic.
Question 2
Question
Which relation is not a function?
Answer
{(2,4), (1,2), (0,0), (-1,2), (-2,4)}
{(2,4), (1,1), (0,0), (-1,1), (-2,4)}
{(2,2), (1,1), (0,0), (-1,1), (-2,2)}
{(2,2), (1,1), (0,0), (1,-1), (2,-2)}
Question 3
Question
The box-and-whisker plot shown below represents the number of magazine subscriptions sold by members of a club. Which statistical measures do points B, D, and E represent,
respectively?
The graph below illustrates the number of acres used for farming in Smalltown, New York, over several years. Using a line of best fit, approximately how many acres will be used
for farming in the 5th year?
opinion of a freshman on the color of Paul’s shirt
Question 6
Question
The length and width of a rectangle are 48 inches and 40 inches. To the nearest inch, what is the length of its diagonal?
Answer
27
62
88
90
Question 7
Question
Jonathan drove to the airport to pick up his friend. A rainstorm forced him to drive at an average speed of 45 mph, reaching the airport in 3 hours. He drove back home at an average speed of 55 mph. How long, to the nearest tenth of an hour, did the trip home take him?
Answer
2.0
2.5
2.8
3.7
Question 8
Question
Which set of data describes a situation that would be classified as
qualitative?
There are 18 students in a class. Each day, the teacher randomly selects three students to assist in a game: a leader, a recorder, and a timekeeper. In how many possible ways can the jobs be assigned?