Understanding Percentages in Data

Why are percentages used to represent the distribution of a variable in large sets of data?

• Percentages make it easier to compare different data sets.

• Percentages are only used for small data sets.

• Percentages are used to confuse the reader.

• Percentages are not useful in data representation.

Which of the following is an example of using percentages to represent data?

• 50 out of 100 students prefer chocolate ice cream.

• 50% of students prefer chocolate ice cream.

• Half of the students prefer chocolate ice cream.

• Chocolate ice cream is the most popular.

What type of data is "the number of pets each student in a class has"?

• Qualitative data

• Discrete quantitative data

• Continuous quantitative data

• None of the above

Which of the following is an example of continuous quantitative data?

• The number of books on a shelf

• The height of students in a class

• The types of pets owned by students

• The number of cars in a parking lot

How can percentages help in understanding survey results?

• They provide exact numbers.

• They allow for easy comparison between different groups.

• They are not useful in surveys.

• They make data more complex.

If 30% of a class of 40 students prefer reading over sports, how many students is that?

• 10 students

• 12 students

• 15 students

• 18 students

Which method is best for collecting qualitative data?

• Surveys with open-ended questions

• Measuring temperature

• Counting the number of apples

• Calculating percentages

What is the main difference between discrete and continuous data?

• Discrete data can take any value, continuous data cannot.

• Continuous data can take any value, discrete data cannot.

• Discrete data is always qualitative.

• Continuous data is always qualitative.

If a survey shows that 25% of people prefer tea over coffee, what does this percentage represent?

• The exact number of people who prefer tea

• A comparison of tea preference to the total surveyed

• The number of people who dislike coffee

• The number of people who prefer coffee

Which of the following is an example of using percentages to organise data?

• Listing the names of students in a class

• Showing that 60% of students passed a test

• Counting the number of red cars in a parking lot

• Measuring the length of a table