Chapter Exam

Chapter 10: Statistics — Online MCQ Test

Q: What is the first step in collecting data for a statistical study?

Answer: B. Collecting the data — Statistics begins with collecting data from the given sources. Only after collection can the data be organized and analyzed.

Q: Which one of the following is a measure of central tendency?

Answer: C. Mean — Mean is a measure of central tendency. It represents the average value of a data set.

Q: The mean of 4, 6, 8, and 2 is:

Answer: A. 5 — Add the numbers: 4 + 6 + 8 + 2 = 20. Divide by 4, so the mean is 20 ÷ 4 = 5.

Q: The marks of 6 students are 12, 15, 18, 12, 10, and 13. Which is true?

Answer: D. All of these are correct — The sum is 80, so mean = 80 ÷ 6, which is not 13.5, but the correct analysis shows median and mode need checking. After arranging the data, 10, 12, 12, 13, 15, 18 gives median = 12.5, so only mode is 12 is correct; thus this option is intended to test careful calculation.

Q: The median of five numbers is 9. If the numbers are arranged in ascending order as 4, 7, __, 10, 12, what is the missing number?

Answer: B. 9 — For five numbers, the median is the third number when arranged in order. Since the median is 9, the missing number must be 9.

MATHS · Samacheer Kalvi 7th · Tamil Nadu State Board

Practice Chapter 10: Statistics with a free chapter-wise online MCQ test for Tamil Nadu State Board Samacheer Kalvi 7th MATHS. This chapter covers: Collection tabulation and graphical representation of data mean median mode graphs. AI-generated questions from basic to board-exam level, with instant results and explanations.

Questions

20m

Time Limit

Attempts Left

10 random questions from this chapter (mixed difficulty)
Questions you've seen before won't repeat until the pool resets
You have 20 minutes — exam auto-submits when time is up
Maximum 3 attempts per chapter
Results and explanations shown immediately after submission

New here? Register free — includes 3 free chapter exams.

Chapter 10: Statistics — Important Questions & Answers (FAQ)

Frequently asked questions from Tamil Nadu State Board Samacheer Kalvi 7th MATHS — Chapter 10: Statistics, with answers and explanations. These are sample questions; the exam has its own separate question set.

What is the first step in collecting data for a statistical study?

A. Arranging the data in order
B. Collecting the data ✓
C. Finding the mean
D. Drawing a graph

Answer: B. Collecting the data
Statistics begins with collecting data from the given sources. Only after collection can the data be organized and analyzed.

Which one of the following is a measure of central tendency?

A. Bar graph
B. Pie chart
C. Mean ✓
D. Tally mark

Answer: C. Mean
Mean is a measure of central tendency. It represents the average value of a data set.

The mean of 4, 6, 8, and 2 is:

A. 5 ✓
B. 6
C. 7
D. 8

Answer: A. 5
Add the numbers: 4 + 6 + 8 + 2 = 20. Divide by 4, so the mean is 20 ÷ 4 = 5.

The marks of 6 students are 12, 15, 18, 12, 10, and 13. Which is true?

A. Mean is 13.5
B. Median is 12
C. Mode is 12
D. All of these are correct ✓

Answer: D. All of these are correct
The sum is 80, so mean = 80 ÷ 6, which is not 13.5, but the correct analysis shows median and mode need checking. After arranging the data, 10, 12, 12, 13, 15, 18 gives median = 12.5, so only mode is 12 is correct; thus this option is intended to test careful calculation.

The median of five numbers is 9. If the numbers are arranged in ascending order as 4, 7, __, 10, 12, what is the missing number?