Statistics — Flashcards
ICSE · Class 9 · Mathematics
30 flashcards for Statistics (ICSE Class 9 Mathematics) to test yourself on key terms and facts. Sample: "A class test has these marks: Ashok 2, Meeta"
Interactive on Super Tutor
Studying Statistics? Get the full interactive chapter.
Quizzes, flashcards, AI doubt-solver and a step-by-step study plan — built for flashcards and more.
Free trial, no card needed.
Learn better with visuals Super Tutor pairs illustrations like this with notes and quizzes for Statistics.
A class test has these marks: Ashok 2, Meeta 7, Beena 8, Hemant 6, Shivani 9. Write the set of data.
Answer
Step 1: List the marks in the order given. Step 2: The data is 2, 7, 8, 6, 9. Answer: The set of data is 2, 7, 8, 6, 9.
Arrange the data 08, 15, 23, 16, 46, 32, 42, 37, 28, 19, 45, 33, 22, 11, 20, 40, 50, 39, 34, 49 in ascending order.
Answer
Step 1: Write the smallest number first. Step 2: Compare all values and arrange from low to high. Step 3: Ascending order is 08, 11, 15, 16, 19, 20, 22, 23, 28, 32, 33, 34, 37, 39, 40, 42, 45, 46, 49,…
Which type of variable is the number of children in a family?
Answer
Step 1: A variable that cannot take all numerical values is discrete. Step 2: Number of children cannot be 2.5 or 3.7. Answer: Number of children in a family is a discrete variable.
Which type of variable is the height of children?
Answer
Step 1: Height can take any value within a range. Step 2: It may be 120 cm, 120.5 cm, or 120.75 cm. Answer: Height of children is a continuous variable.
A set of data has values 1, 2, 0, 3, 2, 1, 5, 4, 3, 2, 1, 2. Find the frequency of 2.
Answer
Step 1: Count how many times 2 appears. Step 2: 2 appears 4 times. Answer: Frequency of 2 is 4.
Make a frequency table for shoe sizes 4, 3, 5, 6, 5, 6, 5, 6, 3, 6, 3, 3, 6, 4, 6, 6, 6, 4, 5.
Answer
Step 1: List sizes in order: 3, 4, 5, 6. Step 2: Count each size. Step 3: 3 occurs 4 times, 4 occurs 3 times, 5 occurs 4 times, 6 occurs 8 times. Answer: Frequency table: 3 → 4, 4 → 3, 5 → 4, 6 → 8.
Classify the frequency distribution with class intervals 1-10, 11-20, 21-30, 31-40.
Answer
Step 1: Check the boundary rule. Step 2: The upper limit of one class does not coincide with the lower limit of the next class. Answer: It is an inclusive distribution.
Classify the frequency distribution with class intervals 10-20, 20-30, 30-40, 40-50.
Answer
Step 1: Check the boundary rule. Step 2: The upper limit of one class coincides with the lower limit of the next class. Answer: It is an exclusive distribution.
+22 more flashcards
Practise AllFrequently Asked Questions
What are the important topics in Statistics for ICSE Class 9 Mathematics?
How many flashcards are available for Statistics?
How should I revise Statistics for Class 9 exams?
Sources & Official References
Content is aligned to the official syllabus. Refer to the board website for the latest curriculum.
More resources for Statistics
Practice Quiz
Test yourself with a quick quiz
Important Questions
Exam-style questions with answers
Revision Notes
Key points for last-minute revision
Chapter Summary
Understand the chapter at a glance
Concept Maps
See how topics connect
Study Plan
Step-by-step plan for this chapter
Syllabus
What topics to cover
For serious students
Get the full Statistics chapter — start free.
Quizzes, flashcards, an AI doubt solver and a study plan for ICSE Class 9 Mathematics. Free to start, no card needed.