Statistics Practice Questions
Class 9 · Mathematics · 2567 free MCQs with instant results and detailed explanations.
2567
Total
932
Easy
1297
Medium
338
Hard
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Topics in Statistics
Mean Median Mode
470
Collection of Data
786
Graphical Representation
738
Frequency Distribution
573
Sample Questions from Statistics
Here are 10 sample questions. Start a quiz to get randomized questions with scoring.
Q1
Easy
What is the first step in collecting data for a survey?
A.
Define the target population
B.
Analyze the data
C.
Present the findings
D.
Draw conclusions
Show Answer & Explanation
Correct Answer: A
Defining the target population helps identify who will provide the data needed for the survey.
Q2
Easy
Which method is NOT commonly used for data collection?
A.
Survey
B.
Observation
C.
Data Mining
D.
Interviews
Show Answer & Explanation
Correct Answer: C
Data mining is primarily used for analyzing large datasets rather than for collecting data.
Q3
Easy
When conducting a survey, which of the following is crucial?
A.
Collecting data from all members
B.
Having a sample that represents the population
C.
Choosing the most expensive method
D.
Collecting data over a long period
Show Answer & Explanation
Correct Answer: B
A representative sample ensures that the survey results are valid and can be generalized.
Q4
Medium
What is the first step in the process of collecting data?
A.
Defining the objectives
B.
Analyzing the data
C.
Organizing the data
D.
Interpreting the results
Show Answer & Explanation
Correct Answer: A
Defining the objectives sets the purpose for data collection, guiding the entire process.
Q5
Medium
Which of the following is NOT a method of collecting primary data?
A.
Surveys
B.
Interviews
C.
Questionnaires
D.
Library research
Show Answer & Explanation
Correct Answer: D
Library research involves collecting secondary data, which is not primary.
Q6
Medium
If a researcher wants to study the height of students in a class, which sampling method might be appropriate?
A.
Stratified sampling
B.
Random sampling
C.
Systematic sampling
D.
Cluster sampling
Show Answer & Explanation
Correct Answer: B
Random sampling allows each student an equal chance of being selected, reducing bias.
Q7
Medium
Which of the following statements best describes qualitative data?
A.
Data that can be measured and expressed numerically
B.
Data that represents characteristics or qualities
C.
Data that is always collected from surveys
D.
Data that is always collected through experimentation
Show Answer & Explanation
Correct Answer: B
Qualitative data describes characteristics that cannot be measured numerically.
Q8
Hard
A survey was conducted in a school to collect data on the number of hours students spend on homework each week. If the data was collected and presented using a frequency distribution table with the following intervals: 0-2 hours, 3-5 hours, 6-8 hours, and 9-11 hours, which of the following is the most appropriate method to determine the modal class from this distribution?
A.
Identify the interval with the highest frequency.
B.
Calculate the mean of all intervals.
C.
Add all frequencies and divide by the number of intervals.
D.
Find the median of the data set.
Show Answer & Explanation
Correct Answer: A
The modal class is defined as the class interval with the highest frequency in a frequency distribution. Therefore, to determine the modal class, one must simply identify which interval contains the most data points.
Q9
Hard
What is the primary purpose of collecting data in statistics?
A.
To summarize information
B.
To confuse people
C.
To create stories
D.
To prove points
Show Answer & Explanation
Correct Answer: A
The primary purpose of collecting data is to summarize information for better understanding and analysis.
Q10
Hard
If a researcher collects data through surveys, which type of data collection method is being used?
A.
Experimental
B.
Observational
C.
Survey
D.
Simulated
Show Answer & Explanation
Correct Answer: C
Surveys are a direct method of collecting data where respondents provide information about themselves.
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Statistics — Class 9 Mathematics Practice Questions Online
This page contains 2567 practice MCQs for the chapter Statistics in Class 9 Mathematics. The questions are organized by difficulty — 932 easy, 1297 medium, 338 hard — so you can choose the right level for your preparation.
Every question includes a detailed explanation to help you understand the concept, not just memorize answers. Take a timed quiz to simulate exam conditions, or practice at your own pace with no time limit. This chapter covers 4 topics, giving you comprehensive coverage of the entire chapter.