Font size
WorksheetsStatistics 2022 Midterm Review
Total questions: 43
Worksheet time: 1hrs 26mins
Probability is always between what two numbers?
10 and 20, including 10 and 20.
0 and 100, including 0 and 100.
0 and 1, including 0 and 1.
All Numbers are possible.
Which of the following is an example of quantitative data?
The color of your car
A person's state of residence
A person's zip code
A person's height
Data that is descriptive and uses adjectives is called...
quantitative
qualitative
What is data?
Information coming from observations, counts, measurements or responses.
The science of collecting, organising, analysing, and interpreting data in order to make decisions.
A numerical description of a population characteristic.
A numerical description of a sample characteristic.
It is the science of collecting, organising, analysing and interpreting data in order to make decisions.
Data
Statistics
Variable
Population
What is Qualitative Data?
Consist of attributes, labels, or nonnumerical entries.
Consist of numerical measurements or counts.
Consist of a subset of the population.
What is Quantitative Data?
Consist of attributes, labels, or nonnumerical entries.
Consist of numerical measurements or counts.
Consist of a subset of the population.
A quantitative variable that can assume a countable number of values.
Nominal Variable
Ordinal Variable
Discrete Variable
Continuous Variable
A sample is biased when:
each member of a population has an equal chance of being selected to the sample group.
a (special) select group is chosen to be in the sample group.
the sample group represents a good cross-section of the population.
each member of the sample group is chosen by random sampling.
20 subjects were taken from a population with an equal number
of males and females.
Simple Random Sample
Sample of Convenience
Information
Systematic Sample
A sample is typically a small subset of the
Population
Variable
Reason
Values
A graph that can be used to give a rough impression of the shape of a data set.
Tally
Frequency
Dot Plot
Relative Frequency
The _________ of a category is the frequency of the category divided by the sum of all the frequencies
Pie Chart
Distribution
Relative Frequency
Bar Graph
A type of bar chart that compares data with the bars touching one another is a _____________.
Pie Chart
Pareto Chart
Histogram
Dot Plot
The TV columnist for a local newspaper invites readers to log on to a website to vote for their favorite TV newscaster.
Voluntary response sample
Seed
Ideas
Cluster Sample
What is an event (in statistics and probability)?
some subset of outcomes from the sample space
all of the outcomes in a sample space
the probability of going out to a dance
a subset of the outcomes from the complement
An example of a complement of an event is...
If the desired outcome is heads on a flipped coin, the complement is tails
the expected outcomes are all in the sample space
wanting an Ace of diamonds to come out when picking a card, and it does
rolling a 6 sided die and expecting to get a 5, and the 5 does not come out in 3 rolls
Sample space is...
the set of all the possible outcomes
the set of all of the complements of the events
the set of all variables that are in the problem
a set of points that are equidistant from the center
If you are in interested in the probability of an event X occurring dependent on whether a secondary event Y is true, you are looking for the...
marginal probability
conditional probability
impendence
sample probability
Independence in statistics is...
the occurrence of one outcome does not affect the probability of the occurrence of the other
two mutually exclusive probabilities that are conditional
two mutually exclusive probabilities that are conditional
the occurrence of 2 or more outcomes that affects the probability of the occurrence of the other
Variables that can only take on a finite number of values are called
discrete variable
continuous variable
binomial variable
normal variable
A variable that has an infinite number of possible values
discrete variable
continuous variable
binomial variable
normal variable
The symbol(s) for mean is/are
explanatory variable
Hint: It may change as a result of your testing.
Response Variable
Descriptive Statistics consists of which of the following:
HINT: MORE THAN 1 CORRECT CHOICE
collection of data
organization of data
making predictions based on data
generalizing from samples to populations
presentation of data
Inferential Statistics consists of which of the following:
HINT: MORE THAN 1 CORRECT CHOICE
summarization of data
determining relationships among variables
performing estimations and hypothesis tests (evaluating claims about a population based on data from samples)
generalizing from samples to populations
presentation of data
Using a random numbers table or selecting cards from a hat are examples of:
HINT: 1 CORRECT CHOICE
cluster sampling
stratified sampling
systematic sampling
random sampling
Dividing a high school student population by grade level and randomly selecting 10 students from each grade level to get a 40 student sample represents:
HINT: 1 CORRECT CHOICE
cluster sampling
stratified sampling
systematic sampling
random sampling
Dividing a high school student population by grade level and randomly selecting a sample of 40 students from only the 10th grade represents:
HINT: 1 CORRECT CHOICE
cluster sampling
stratified sampling
systematic sampling
random sampling
A sample of vehicle license plates is obtained when a camera in a single lane takes pictures of every 10th vehicle that passes the camera. This method of sampling represents:
HINT: 1 CORRECT CHOICE
cluster sampling
stratified sampling
systematic sampling
random sampling
