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Basic Statistics – Free Practice Questions

Basic Statistics is part of Maths (Quantitative Aptitude) in government exams such as SSC MTS, SSC CHSL, SSC CGL, RRB Group D / Level-1, RRB NTPC and others. This page has 200 free practice questions in English and Hindi, with correct answers and explanations and short revision notes.

मूल सांख्यिकी – हिंदी और अंग्रेज़ी में 200 निःशुल्क अभ्यास प्रश्न, उत्तर और व्याख्या के साथ।

Read short notesPractise with explanationsQuick quiz (10 questions)Timed topic test

Questions: 200 · Sets of 50: 4 · Difficulty mix: 139 easy, 61 medium · Languages: English and Hindi

Sample Basic Statistics questions with answers

Q1. Find the mean of 31, 19, 39, 37, 19.

31, 19, 39, 37, 19 का माध्य ज्ञात करें।

  1. 29
  2. 31
  3. 30
  4. 27
Answer: 29. Mean = 145 ÷ 5 = 29.
माध्य = 145 ÷ 5 = 29

Q2. Find the median of 3, 17, 23, 48, 30, 43, 8.

3, 17, 23, 48, 30, 43, 8 की माध्यिका ज्ञात करें।

  1. 48
  2. 24
  3. 30
  4. 23
Answer: 23. Arrange in order: 3, 8, 17, 23, 30, 43, 48. The middle (4th) value is 23.
क्रम में लगाएँ: 3, 8, 17, 23, 30, 43, 48। बीच का (चौथा) मान 23 है।

Q3. Find the mean of 39, 6, 23, 18, 29.

39, 6, 23, 18, 29 का माध्य ज्ञात करें।

  1. 21
  2. 24
  3. 23
  4. 26
Answer: 23. Mean = 115 ÷ 5 = 23.
माध्य = 115 ÷ 5 = 23

Q4. Find the mode of 3, 3, 3, 5, 18, 8, 17.

3, 3, 3, 5, 18, 8, 17 का बहुलक ज्ञात करें।

  1. 17
  2. 3
  3. 18
  4. 5
Answer: 3. The mode is the value that appears most often. 3 appears 3 times.
बहुलक वह मान है जो सबसे अधिक बार आता है। 3 तीन बार आता है।

Q5. Find the mode of 12, 11, 11, 11, 8, 10, 17.

12, 11, 11, 11, 8, 10, 17 का बहुलक ज्ञात करें।

  1. 11
  2. 17
  3. 10
  4. 12
Answer: 11. The mode is the value that appears most often. 11 appears 3 times.
बहुलक वह मान है जो सबसे अधिक बार आता है। 11 तीन बार आता है।

Q6. Find the median of 5, 26, 19, 49, 16, 48, 45.

5, 26, 19, 49, 16, 48, 45 की माध्यिका ज्ञात करें।

  1. 26
  2. 49
  3. 29
  4. 45
Answer: 26. Arrange in order: 5, 16, 19, 26, 45, 48, 49. The middle (4th) value is 26.
क्रम में लगाएँ: 5, 16, 19, 26, 45, 48, 49। बीच का (चौथा) मान 26 है।

Q7. Find the mean of 35, 33, 26, 16, 30.

35, 33, 26, 16, 30 का माध्य ज्ञात करें।

  1. 30
  2. 29
  3. 26
  4. 28
Answer: 28. Mean = 140 ÷ 5 = 28.
माध्य = 140 ÷ 5 = 28

Q8. Find the mean of 7, 15, 22, 24, 22.

7, 15, 22, 24, 22 का माध्य ज्ञात करें।

  1. 22
  2. 19
  3. 16
  4. 18
Answer: 18. Mean = 90 ÷ 5 = 18.
माध्य = 90 ÷ 5 = 18

Q9. Find the range of: 78, 69, 45, 110, 89, 68

परिसर ज्ञात करें: 78, 69, 45, 110, 89, 68

  1. 67
  2. 110
  3. 155
  4. 65
Answer: 65. Range = highest − lowest = 110 − 45 = 65.
परिसर = सबसे बड़ा − सबसे छोटा = 110 − 45 = 65।

Q10. Find the median of: 44, 49, 74, 50, 34, 38

माध्यिका ज्ञात करें: 44, 49, 74, 50, 34, 38

  1. 49
  2. 48 1/6
  3. 46 1/2
  4. 44
Answer: 46 1/2. In order: 34, 38, 44, 49, 50, 74. With an even count, median = (44 + 49)/2 = 46 1/2.
क्रम में: 34, 38, 44, 49, 50, 74। सम संख्या होने पर माध्यिका = (44 + 49)/2 = 46 1/2।
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