Unit 1: Developing Data

Which of the following is not a main component of statistics

• Describe

• Inference

• Design

• Collecting Data

What is the first step in the statistical process for answering a statistical question?

• Design

• Generating Graphs

• Inference

• Describe

Which of the following is a component of statistics that involves summarizing and analyzing data?

• Inference

• Describe

•    Design

• Collecting Data

Which data format is suitable for storing large amounts of data?

• Document formats

• Text formats

• Database formats

• Binary formats

Which of the following is an example of a primary data collection method?

• Analysing official statistics

• Reading existing records and documents

• Interviews

• Querying databases

Which of the following is an example of a continuous quantitative variable?

• Gender

• Number of siblings

• Eye colour

• Height of students in centimetres

What is the purpose of converting information to data?

• To prevent others from accessing the information

• To transform qualitative or unstructured information into a structured format that can be easily analysed by computers

• To make the data more interesting and entertaining

• To confuse people with unnecessary complexity

What is the difference between a population and a sample?

• A population is set of all individuals, while a sample is set of all variables cases

• A population consists of quantitative data, while a sample consists of qualitative data

• A population includes only humans, while a sample can include any subject

• A population is the entire group of individuals about which we want information, while a sample is the part of the population we are studying.

Which of the following best describes a discrete quantitative variable?

• A variable that can take on all possible numerical values in a given range

• A variable with gaps in the set of possible numbers

• A variable that involves numerical measurements and quantities

• A variable with no fundamental ordering of categories

What is the primary purpose of descriptive statistics?

• To draw conclusions and make predictions based on data.

• To identify relationships between variables.

• To summarize and organize data in a meaningful way.

• To test hypotheses about a population.