Statistical Bias

Quiz
•
Mathematics
•
10th Grade
•
Hard
Anthony Clark
FREE Resource
14 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Why do we randomly select our samples?
for control
reduce bias
so we don't get the same answers from everyone
to eliminate confounding results
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
I want to estimate the proportion of all adults in Chula Vista who graduated from high school. I select a random sample of addresses and go to those houses. When an adult answers the door, I ask if they had graduated from high school. If a child answers the door, I ask for an adult. If there is none there at the time, I return at another time to complete the survey. What is the most prominent bias?
Non-response bias
Response bias
Voluntary response bias
Undercoverage
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Source of bias in which some groups of populations are LEFT OUT of the selection process
Response Bias
Undercoverage
Convenience Sampling
Voluntary Response
4.
CLASSIFICATION QUESTION
1 min • 4 pts
Organize these options into the right categories
Groups:
(a) Selection Bias
,
(b) Measurement Bias
,
(c) Nonresponse Bias
,
(d) Graphical Bias
The scale used in the study was not calibrated before testing.
Only getting 20 responses out of the 200 people asked, but still making a claim about the data.
Pi chart pieces are similar or the same colors.
Only testing a medicine on middle-aged white men.
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
Tanya wants to know the percent of people likely to attend the upcoming musical at school. She asks each person in the musical how many people they know who are coming to make a prediction. Why is this sample biased?
Drama students are more likely to lie.
Musicals are better attended than plays.
The drama teacher was not asked.
The sample is not random and not representative of the entire school population.
Answer explanation
The sample is not random and not representative of the entire school population, as it only includes people involved in the musical, leading to bias.
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
In order to estimate the proportion of students that text while driving, a school administrator selects a simple random sample of students from a list of all students at the school who have parking permits. The students are called to the office, one at a time. The administrator asks each student, “Do you text while driving, even though you are not supposed to?” Based on the survey, the administrator estimates that only 2% of students with parking passes text while driving. What potential bias is present in the design of this survey and what is the likely direction of the bias?
The sample proportion is likely an underestimate of the population proportion due to response bias.
The sample proportion is likely an underestimate of the population proportion due to undercoverage.
The sample proportion is likely an underestimate of the population proportion due to nonresponse.
The sample proportion is likely an overestimate of the population proportion due to response bias.
The sample proportion is likely an overestimate of the population proportion due to undercoverage.
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
What are the potential consequences of bias in statistics?
Misunderstood results, accurate conclusions, and fair treatment
Accurate results, clear conclusions, and fair treatment
No impact on results, accurate conclusions, and fair treatment
Inaccurate results, misleading conclusions, and unfair treatment
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