Unit 1 Review: Study design and types of data

Which type of variable is described as having a countable number of values?

• Continuous

• Discrete

• Categorical

• Interval

What type of data is described by qualitative/categorical variables?

• Data with a true zero point

• Data that can be ordered from smallest to largest

• Data that describe individuals by placing them into categories

• Data that consist of numerical values

Which level of measurement includes data that can be arranged in order and have meaningful differences between values, but no true zero?

• Nominal

• Ordinal

• Interval

• Ratio

Tags

CCSS.HSS.ID.A.4

Which example fits the definition of a continuous variable?

• Number of students in a class

• Money in a bank account

• Height

• Hair color

What does the term "Ratio" refer to in data analysis?

• Data that can be arranged in any order without meaningful differences between values.

• Data that can be arranged in order, having meaningful differences between values, and meaningful ratios of values.

• Data that cannot be arranged in order and does not have a true zero.

• Data that is used only for categorical analysis.

What is a characteristic of a Simple Random Sample?

• Only specific groups are selected based on their initial characteristics.

• Every member of the population has an equal chance of being selected.

• Members are selected based on a fixed interval from a sorted list.

• Only members with specific opinions are selected.

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

What sampling method involves selecting every kth member of the population starting from a randomly chosen point?

• Cluster Sample

• Stratified Sample

• Systematic Sample

• Convenience Sample

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

What type of sample involves dividing the entire population into pre-existing segments or clusters, often geographical, where every member of each selected cluster is included?

• Stratified Sample

• Cluster Sample

• Convenience Sample

• Voluntary Response Sample

Tags

CCSS.7.SP.A.1

CCSS.HSS.IC.A.1

In an experimental study, what is the purpose of a control group?

• To receive the treatment

• To provide a comparison by receiving no treatment or a placebo

• To be divided into blocks for further testing

• To be randomly assigned without any specific characteristics

What is a Completely Randomized Experiment?

• An experiment where subjects are divided into pairs

• An experiment where subjects are divided into blocks

• An experiment where subjects or experimental units are randomly assigned to the control or treatment groups

• An experiment where the researcher observes without intervention

Tags

CCSS.HSS.IC.B.3