RRB JE Elementary Statistics Questions: 19th Feb

Dear aspirants,

As you all know, RRB JE Exam will be held in the month of april/may 2019. So we are here to help you with the Mathematics subject. We are providing daily quantitative aptitude quizzes, which will help you to score good marks in this section. We aim to provide the best study material to our readers with exam level questions to help them get used to the recent pattern. Attempt this quiz and check your preparation. 

Q1.What is the average (arithmetic mean) of 5, 10, 15, 20, 25, 30, 35, 40, 45, 50
5, 10, 15, 20, 25, 30, 35, 40, 45, 50 का औसत (अंकगणितीय माध्य) क्या है?
(a) 55
(b) 45
(c) 35
(d) 27.5

Q2.The arithmetic mean of the length of 100 equivalent cars is d metres. Then, which of the following is the total length (in metes) of all the cars in term of d?
100 समतुल्य कारों की लंबाई का अंकगणित औसत d मीटर है. फिर, निम्नलिखित में से कौन सी d के टर्म में सभी कारों की कुल लंबाई (मीटर में) है?
(a) d + 100
(b) 100 -d
(c) d/100
(d) 100d

Q3.What is the mean of 0, 1, 0, 9, 6, 14, 0, 10, 20
0, 1, 0, 9, 6, 14, 0, 10, 20 का औसत क्या है?
(a) 8.88
(b) 6.66
(c) 2.22
(d) 4.44

Q4.Find the arithmetic mean of following:
निम्नलिखित का अंकगणितीय औसत ज्ञात कीजिए
x, x+1, x+2, x+3, x+4
(a) x +2
(b) 5x +10
(c) (2x+5)/2
(d) (2x+5)/3

Q5.Evaluate the following for given set of numbers:
दी गई संख्याओं के सेट के लिए निम्नलिखित का मूल्यांकन करें
3 × mean + 2 × mode – 6 median
Set={1, 2, 2, 3, 3, 3, 4, 4, 4, 4}
(a) 0
(b) 1
(c) –1
(d) 2

Q6.Find mean of first five prime nos.
पहले पाँच अभाज्य संख्याओं का औसत ज्ञात कीजिए
(a) 5.6
(b) 3.6
(c) 5.4
(d) 4.5

Q7.Runs scored by Virat Kohli in some 3 test Matches against Australia are as follows 101, 126, 32, 38, 52, and 40. Find median of the given scores.
ऑस्ट्रेलिया के खिलाफ 3 टेस्ट मैचों में विराट कोहली द्वारा बनाए गए रन 101, 126, 32, 38, 52 और 40 हैं। दिए गए स्कोर का मीडियन ज्ञात करें.
(a) 48
(b) 46.5
(c) 46
(d) 47

Q8.The numbers of rupee notes of different denominations are given as below.
विभिन्न मूल्यवर्ग के रुपए के नोटों की संख्या नीचे दी गई है।
Denomination     10 20 5
Number of notes 15 20 8
Find mode of above data
उपरोक्त डेटा का मोड ज्ञात करें
(a) 10
(b) 8
(c) 20
(d) 15

Q9.The heights of Arun’s family members are given in cms as 165, 180, 181, 163, 172, 180, 162
The median height of the family will be
अरुण के परिवार के सदस्यों की ऊँचाई 165, 180, 181, 163, 172, 180, 162 के रूप में सेमी में दी गई है. परिवार की मीडियन ऊंचाई ज्ञात करें.
(a) 180
(b) 170
(c) 131
(d) 172

Q10.Find mode of the following.
निम्नलिखित का मोड ज्ञात करें
2³, x, y, z, x², x³, y³, z³, x², ax², x², xy, bx³, zx³, x², x²y, ax², xy, bx³, x³, x²y
(a) ax²
(b) x²
(c) zx³
(d) bx³

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