Data Analysis and Graph Representation Quiz

What is the purpose of sorting data in analysis?

• To group similar items

• To arrange data in a specific order

• To summarize data with statistics

• To delete unnecessary data

When grouping data, why is it important that groups are mutually exclusive and collectively exhaustive?

• To avoid overlapping and ensure all data is categorized

• To allow for faster data processing

• To simplify the sorting process

• To reduce the size of the data set

Which of the following is an example of summarizing data?

• Sorting names alphabetically

• Grouping sales by region

• Calculating the mean test score of a class

• Arranging data in descending order

Using the plant heights after 2 weeks, calculate the mean height: Plant 1: 15.2 cm Plant 2: 13.6 cm Plant 3: 17.1 cm

• 15.3 cm

• 14.8 cm

• 16.2 cm

• 14.5 cm

In the plant fertiliser experiment, what was the flaw in the experimental design?

• Not all plants were measured

• There was no control group

• The plants were over-watered

• Data was not summarized correctly

What type of graph is best suited for showing changes over time?

• Bar chart

• Line graph

• Scatter plot

• Pie chart

You want to compare the sales of five different products in a store. Which type of graph should you use?

• Line graph

• Bar chart

• Scatter plot

• Histogram

A researcher is studying the correlation between hours of sleep and test scores. Which graph should they use?

• Bar chart

• Line graph

• Scatter plot

• Pie chart

If you want to show how temperature changes every day for a month, which type of graph would be most effective?

• Bar chart

• Line graph

• Scatter plot

• Histogram

In a survey about favorite ice cream flavors, how would you best display the number of votes for each flavor?

• Line graph

• Bar chart

• Scatter plot

• Pie chart