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WorksheetsInference Vocabulary
Total questions: 10
Worksheet time: 11mins
Ana wants to know the average student’s opinion of the tardy policy at her school. Which group of students should she survey in order to achieve the most accurate results (valid)?
thirty students who are often tardy
thirty students who are rarely tardy
thirty of her friends
thirty randomly selected students from her school
What are ALL the terms used for unbiased? There is more than one answer.
fair
invalid
valid
unfair
conclusive
Define sample.
part of a group
part of a population
always larger than the population
none of the above
What are ALL the terms used for biased sample
unfair
fair
valid
invalid
inconclusive
Define population.
Part of a population
A population can be any group that is appropriate for a particular situation.
7. A public library asked every 10th person who entered to name the type of book they were getting.
Biased/Convenience
Unbiased/Systematic Random Sample
Biased/Voluntary Sample
Unbiased/Simple Random Sample
What are the 5 number summary of a box and whisker plot?
mode, median, range, mean, IQR
minimum, first quartile, median, third quartile, and maximum,
IQR, mean, minimum, maximum, and mode
Only mode, median, and minimum
A restaurant wants to know if customers buy dessert when they eat out. As people leave the restaurant one evening, 20 people are surveyed at random. Eight people say they usually order dessert when they eat out. The restaurant concluded that most customers do not order dessert.
A sample should be
representative of only middle school students
a very large group
representative of the population
representative of people who volunteer
