The arithmetic mean of the observations 95, 45, 85, 45, 51, 85, 84, 66 and 47 is:
The arithmetic mean of the observations 95, 45, 85, 45, 51, 85, 84, 66 and 47 is:
प्रेक्षणों 95, 45, 85, 45, 51, 85, 84, 66 और 47 का समांतर माध्य ज्ञात कीजिए।
Detailed Solution & Logic
Correct Answer:
67
समाधान:
चरण 1: सभी observations को जोड़ें
$95 + 45 + 85 + 45 + 51 + 85 + 84 + 66 + 47$
Step by step जोड़ते हैं:
-
95 + 45 = 140
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140 + 85 = 225
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225 + 45 = 270
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270 + 51 = 321
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321 + 85 = 406
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406 + 84 = 490
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490 + 66 = 556
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556 + 47 = 603
कुल योग = 603
चरण 2: observations की संख्या निकालें
कुल observations = 9
चरण 3: arithmetic mean निकालें
$\text{Mean} = \frac{603}{9} = 67$
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