Data Collection and Representation
Math ⇒ Statistics and Probability
Data Collection and Representation starts at 6 and continues till grade 12.
QuestionsToday has an evolving set of questions to continuously challenge students so that their knowledge grows in Data Collection and Representation.
How you perform is determined by your score and the time you take.
When you play a quiz, your answers are evaluated in concept instead of actual words and definitions used.
See sample questions for grade 8
Describe one advantage of using a pie chart to represent data.
Describe the difference between a bar graph and a histogram.
Explain the purpose of using a tally chart in data collection.
Explain why it is important to avoid bias when collecting data.
A class of 30 students was surveyed about their favorite fruit. The results were: 10 chose apples, 8 chose bananas, 7 chose oranges, and 5 chose grapes. What is the mode of the data?
A data set has the following values: 2, 4, 4, 6, 8. What is the mean?
A data set has the following values: 5, 7, 7, 8, 10. What is the median?
A group of students recorded the number of books they read in a month: 2, 3, 5, 2, 4, 3, 2. What is the mode?
Which of the following is a continuous variable? (1) Number of students (2) Height of students (3) Number of cars (4) Number of books
Which of the following is a disadvantage of using secondary data? (1) It is time-consuming to collect (2) It may not be relevant to the current study (3) It is always accurate (4) It is always up-to-date
Which of the following is a method of primary data collection? (1) Using a published report (2) Conducting a survey (3) Referring to a textbook (4) Reading a newspaper
Which of the following is a reason to use a sample instead of a population? (1) The population is too small (2) The sample is always more accurate (3) It saves time and resources (4) The sample is always random
Fill in the blank: A ________ is a collection of information, often in the form of numbers or facts.
Fill in the blank: A ________ is a table that shows the number of times each value occurs in a data set.
Fill in the blank: Data that can be counted and has distinct values is called ________ data.
Fill in the blank: In a ________ graph, data points are connected by straight lines to show trends over time.
True or False: A bar graph can be used to represent both discrete and continuous data.
True or False: A frequency table can be used to organize both qualitative and quantitative data.
True or False: In a bar graph, the bars must touch each other.
True or False: The median is always a value from the data set.
