Answer:
a counterexample is 5+7=12
Step-by-step explanation:
this is because 5 and 7 are both odd numbers. when you add these numbers, you get 12. 12 is an even number.
1,2,3,4,5,6,8,9,10,12,15,16,18,20,24,25,27,30,36,40,45,48,50,54,60,72,75,80,90,100,108,120,135,144,150,180,200,216,225,240,270,300,360,400,432,450,540,600,675,720,900,1080,1200,1350,1800,2160,2700,3600,5400,10800
any one of these that doesn't 6 wont divide perfectly
Four squared equals 16
σ = 0.5102
If
Y = volume filled,
µ = mean
It is a normal distribution
It follows that
0.95 = P (|Y − µ| < 1) = P (|Z| < 1 / σ)
so that
1 / σ = 1.96 ⇒ σ = (1 / 1.96)
⇒ σ = 0.5102.
