First of all, your sample equation is wrong, it is y=mx+b, not y=mx+c, but anyway, the finished equation is going to be y=3, hope this helps
Standard Deviation, σ: 1.870828693387
Count, N: 4
Sum, Σx: 12
Mean, μ: 3
Variance, σ2: 3.5
Answer:
answer above or below is right
Step-by-step explanation:
Compare it to 1/2 (which is the same as 6/12)
12 1/2 = 12.5
2.5mm = 2.5 cm
So the answer would be 15 cm