I don\'t know how to solve this chart. Could you please help meto solve for <y>

Question

I don't know how to solve this chart. Could you please help meto solve for <y> and Time, t (s) Dist. Dist. y2 (m) Dist. Dist. Dist. <y> t2 y1(m) y3 (m) y4 (m) y5 (m) 0 0 0 0 0 0 0 0.5 1 1.4 1.1 1.4 1.5 0.25 0.75 2.6 3.2 2.8 2.5 3.1 0.5625 1 4.8 4.4 5.1 4.7 4.8 1 1.25 8.2 7.9 7.5 8.1 7.4 1.5625 I don't know how to solve this chart. Could you please help meto solve for <y> and Time, t (s) Dist. Dist. y2 (m) Dist. Dist. Dist. <y> t2 y1(m) y3 (m) y4 (m) y5 (m) 0 0 0 0 0 0 0 0.5 1 1.4 1.1 1.4 1.5 0.25 0.75 2.6 3.2 2.8 2.5 3.1 0.5625 1 4.8 4.4 5.1 4.7 4.8 1 1.25 8.2 7.9 7.5 8.1 7.4 1.5625 Time, t (s) Dist. Dist. y2 (m) Dist. Dist. Dist. <y> t2 y1(m) y3 (m) y4 (m) y5 (m) 0 0 0 0 0 0 0 0.5 1 1.4 1.1 1.4 1.5 0.25 0.75 2.6 3.2 2.8 2.5 3.1 0.5625 1 4.8 4.4 5.1 4.7 4.8 1 1.25 8.2 7.9 7.5 8.1 7.4 1.5625

Explanation / Answer

<y> is the average of all the elements =(y1+y2+y3+y4+y5)/5 is standrd deviation given by ={[(y12+y22+y32+y42+y52)/5]- [<y>]2} then we can have teh following table t(s) y1(m) y2(m) y3(m) y4(m) y5(m) <y> s t2 0 0 0 0 0 0 0 0 0 0.5 1 1.4 1.1 1.4 1.5 1.28 0.193907 0.25 0.75 2.6 3.2 2.8 2.5 3.1 2.84 0.272764 0.5625 1 4.8 4.4 5.1 4.7 4.8 4.76 0.224499 1 1.25 8.2 7.9 7.5 8.1 7.4 7.82 0.318748 1.5625 t(s) y1(m) y2(m) y3(m) y4(m) y5(m) <y> s t2 0 0 0 0 0 0 0 0 0 0.5 1 1.4 1.1 1.4 1.5 1.28 0.193907 0.25 0.75 2.6 3.2 2.8 2.5 3.1 2.84 0.272764 0.5625 1 4.8 4.4 5.1 4.7 4.8 4.76 0.224499 1 1.25 8.2 7.9 7.5 8.1 7.4 7.82 0.318748 1.5625

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