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 10
A class of 30 students was surveyed about their favorite fruit. The results are: Apple - 10, Banana - 8, Orange - 7, Mango - 5. What is the relative frequency of students who prefer Banana?
A data set contains the following values: 5, 7, 8, 10, 12. What is the range of the data?
A data set has the following values: 3, 5, 7, 9, 11. If you add 2 to each value, what will be the new mean?
A frequency table shows the number of books read by students in a month: 0 books - 2 students, 1 book - 5 students, 2 books - 8 students, 3 books - 10 students, 4 books - 5 students. What is the total number of students surveyed?
A grouped frequency table has class intervals 0-10, 10-20, 20-30 with frequencies 5, 8, and 7 respectively. What is the total number of observations?
A set of data is: 2, 4, 4, 6, 8. What is the mean of the data?
A survey was conducted among 100 students about their favorite sport. The results are: Football - 40, Basketball - 25, Cricket - 20, Tennis - 15. What is the mode of the data?
Describe one advantage and one disadvantage of using a questionnaire for data collection.
Explain the difference between a population and a sample in statistics.
Explain the difference between discrete and continuous data with an example for each.
Explain why it is important to avoid bias in data collection.
What is the main advantage of using a frequency polygon over a histogram?
What is the main difference between qualitative and quantitative data?
What is the main purpose of using a random sample in data collection?
What is the main purpose of using a stem-and-leaf plot?
