Podcast
Questions and Answers
What is the main advantage of using graphical representation in data analysis?
What is the main advantage of using graphical representation in data analysis?
- It requires extensive training to understand the data.
- It saves time and money in gathering information. (correct)
- It can only represent numerical data, not categorical data.
- It guarantees 100% response rate from all respondents.
Which of the following is a disadvantage of using bar graphs for data presentation?
Which of the following is a disadvantage of using bar graphs for data presentation?
- They require a high level of statistical knowledge to interpret.
- Some respondents may ignore the questionnaires, leading to missing data. (correct)
- They cannot depict categorical data.
- All distributed questionnaires are guaranteed to be retrieved.
What is the purpose of giving questionnaires to respondents by personal delivery or by mail?
What is the purpose of giving questionnaires to respondents by personal delivery or by mail?
- To save time and money in gathering needed information. (correct)
- To prevent respondents from understanding the questions.
- To ensure 100% completion rate of the questionnaires.
- To make the questionnaire distribution process more complex.
Which of the following is NOT a type of graphical representation mentioned in the text?
Which of the following is NOT a type of graphical representation mentioned in the text?
What is a histogram used for?
What is a histogram used for?
What is an advantage of the registration method mentioned in the text?
What is an advantage of the registration method mentioned in the text?
Which method of gathering data is often used by scientific researchers?
Which method of gathering data is often used by scientific researchers?
What type of chart is a circle graph or pie chart?
What type of chart is a circle graph or pie chart?
What term is used for the process of generalizing samples to populations, performing estimations, hypothesis tests, determining relationships among variables, and making predictions?
What term is used for the process of generalizing samples to populations, performing estimations, hypothesis tests, determining relationships among variables, and making predictions?
What is the key characteristic of a pictograph or pictogram used in data representation?
What is the key characteristic of a pictograph or pictogram used in data representation?
In statistics, what does the term 'population' refer to?
In statistics, what does the term 'population' refer to?
Which statistic could be used to draw conclusions about the population of all workers aged 50 to 70 based on a survey sample?
Which statistic could be used to draw conclusions about the population of all workers aged 50 to 70 based on a survey sample?
