निम्न तालिका से माध्य की गणना कीजिए।

 स्कोर 

बारंबारता

0-10

2

10-20

4

20-30

12

30-40

21

40-50

6

50-60

3

60-70

2

This question was previously asked in
SSC CGL 2022 Tier-I Official Paper (Held On : 09 Dec 2022 Shift 1)
View all SSC CGL Papers >
  1. 34.2 
  2. 33.4 
  3. 32.6 
  4. 35.6 

Answer (Detailed Solution Below)

Option 2 : 33.4 
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Detailed Solution

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 दिया गया है:

 स्कोर 

बारंबारता

0-10

2

10-20

4

20-30

12

30-40

21

40-50

6

50-60

3

60-70

2

 

प्रयुक्त सूत्र:

 माध्य = \(\Sigma fixi \over \Sigma fi\)

जहां fi = विशेष मान की बारंबारता

xi = आवृत्ति वर्ग का मध्य मान

गणना:

 स्कोर   बारंबारता (fi) xi fixi
0-10 2 5 10
10-20 4 15 60
20-30 12 25 300
30-40 21 35 735
40-50 6 45 270
50-60 3 55 165
60-70 2 65 130
Total (∑): 50 245 1670

  माध्य = \(1670 \over 50\) = 33.4 

दी गई बारंबारता बंटन सारणी का माध्य 33.4 है।

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