Y12 EC Unit 2 Week 4 PreQuiz

Which of the following can introduce bias in data collection?

• Accuracy of measurements

• Unconscious bias

• Choice of data source

• All of the above

What is an example of unconscious bias in data analysis?

• Using a standardized testing method

• Relying on personal assumptions during interpretation

• Validating data with multiple sources

• Using automated algorithms for analysis

What role does the audience play in data visualisation?

• Ensuring the visualisation is tailored to their needs

• Providing raw data for analysis

• Executing the data collection process

• Acting as unbiased evaluators

Which of the following is an example of a biased data source?

• Data collected from a diverse population

• Data from a single demographic group

• Publicly available government data

• Data verified by multiple institutions

Which spreadsheet feature is commonly used to develop dashboards?

• Pivot tables

• Conditional formatting

• Charts

• All of the above

What is a limitation of presentation software for data analysis?

• Limited interaction with data

• Lack of visualization options

• Inability to import data

• High cost compared to spreadsheets

Which of these is an example of a business analytics service?

• Power BI

• Google Slides

• Adobe Photoshop

• Audacity

Custom software solutions for data visualisation are ideal for:

• Small-scale personal projects

• Scenarios requiring tailored functionality

• Basic data aggregation tasks

• Creating static charts for reports

What is the effect of outliers on a data visualisation?

• They provide clarity to trends

• They can skew the visualisation and mislead interpretation

• They enhance data accuracy

• They make visualisations easier to understand

Aggregation in data visualisation involves:

• Combining data to provide summaries

• Filtering data to remove unnecessary elements

• Highlighting outliers in a dataset

• Creating raw data from existing summaries