help me find the last number, statistics

Statistics
Tutor: None Selected Time limit: 1 Day

Feb 13th, 2015

Slope(b) = (NΣXY - (ΣX)(ΣY)) / (NΣX2 - (ΣX)2), here N =6
= ((6)*(109.4)-(7.7)*(90))/((6)*(1420)-(90)^2)
=-0.087


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Feb 13th, 2015

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Feb 13th, 2015
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Feb 13th, 2015
Dec 4th, 2016
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