नीचे दी गई तालिका 5 अलग-अलग वर्षों में दो देशों द्वारा विदेशी व्यापार को दर्शाती है।

 

देश 

वर्ष 

P

Q

Y1

220

95

Y2

200

155

Y3

125

245

Y4

115

225

Y5

85

140

सभी 5 वर्षों में देश P द्वारा औसत विदेशी व्यापार का मूल्य क्या है?

This question was previously asked in
SSC CGL 2022 Tier-I Official Paper (Held On : 07 Dec 2022 Shift 4)
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  1. 155
  2. 745
  3. 149
  4. 135

Answer (Detailed Solution Below)

Option 3 : 149
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सूत्र:

मूल्यों के एक समूह के औसत (समांतर माध्य) की गणना सभी मूल्यों को जोड़कर और योग को कुल मूल्यों की संख्या से विभाजित करके की जा सकती है।

औसत = (सभी मूल्यों का योग)/(मूल्यों की कुल संख्या)

हल:

"P" कॉलम में मूल्यों का योग = 220 + 200 + 125 + 115 + 85 = 745

देश P द्वारा औसत विदेशी व्यापार = मूल्यों का योग / वर्षों की कुल संख्या

= 745/5

= 149

इसलिए, सभी 5 वर्षों में देश P द्वारा औसत विदेशी व्यापार 149 है।

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