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What is the population variance of the data 16,14,15,12,24,13 |
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Answer» ONG>Answer: = 6+8+10+12+14+16+18+20+22+24
= 10 150
=15 Variance= 10 ∑(X− x ) 2
= 10 (6−15) 2 +(8−15) 2 +(10−15) 2 +(12−15) 2 +(14−15) 2 +(16−15) 2 +(18−15) 2 +(20−15) 2 +(22−15) 2 +(24−15) 2
= 10 (−9) 2 +(−7) 2 +(−5) 2 +(−3) 2 +(−1) 2 +(1) 2 +(3) 2 +(5) 2 +(7) 2 +(9) 2
= 10 81+49+25+9+1+1+9+25+49+81
= 10 330
=33 ∴ Variance =33 |
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