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 9
Describe one advantage of using a random sample in data collection.
Describe one limitation of using secondary data.
Describe the purpose of a frequency polygon.
Explain the difference between a bar graph and a histogram.
A class of 30 students was surveyed about their favorite sport. The results were: Football: 12, Basketball: 8, Cricket: 6, Tennis: 4. What is the mode of the data?
A data set has the following values: 4, 8, 6, 5, 7. What is the mean?
A data set has the following values: 5, 7, 7, 8, 10. What is the mean?
A frequency table shows the number of pets owned by students: 0 pets: 5 students, 1 pet: 8 students, 2 pets: 7 students, 3 pets: 2 students. How many students own at least one pet?
Which method is best for collecting data about the daily temperature in a city? (1) Survey (2) Experiment (3) Observation (4) Interview
Which of the following is a categorical variable? (1) Age (2) Gender (3) Height (4) Weight
Which of the following is a continuous variable? (1) Number of books (2) Shoe size (3) Height (4) Number of cars
Which of the following is a discrete variable? (1) Height (2) Number of students (3) Weight (4) Temperature
Fill in the blank: A ________ is a visual representation of data using rectangular bars.
Fill in the blank: A ________ sample is one in which every member of the population has an equal chance of being selected.
Fill in the blank: In a frequency table, the ________ column shows how many times each value occurs.
Fill in the blank: The ________ is the difference between the highest and lowest values in a data set.
True or False: A bar graph is best used to represent categorical data.
True or False: A histogram can be used to display continuous data.
True or False: A line graph is suitable for representing data that changes over time.
True or False: A pie chart can be used to represent data with overlapping categories.
