# Example 12.2.1, length (cm) and weight(g)
length=c(60,69,66,64,54,67,59,65,63)
weight=c(136,198,194,140,93,172,116,174,145)

# Exercise 12.2.5
density=c(137,173,107,124,132,157,135,184,115,112,103,80,102,165,65,160,149,157,85,119)
weight=c(212,194,241,241,215,196,225,193,250,224,241,257,237,200,282,190,206,208,246,224)

# Exercise 12.2.6
acid=c(0,0,3,3,6,6,10,10,20,20,30,30)
fungus=c(33.3,31.0,29.8,27.8,28.0,29.0,25.5,23.8,18.3,15.5,11.7,10.0)

# Exercise 12.2.7
mass=c(49.3,59.3,68.3,48.1,57.6,78.1,76.1)
energy=c(1894,2050,2353,1838,1948,2528,2568)

# Exercise 12.3.1
time=c(0,10,20,30,40,50,60)
leucine=c(0.02,0.25,0.54,0.69,1.07,1.50,1.74)

# Exercise 12.3.6
alt=c(90,230,240,260,330,400,410,550,590,610,700,790)
resp=c(0.11,0.20,0.13,0.15,0.18,0.16,0.23,0.18,0.23,0.26,0.32,0.37)

# Exercise 12.3.7
length=c(155,127,136,135,158,145,136,172,158,162,162)
jump=c(71.0,70.0,100.0,120.0,103.3,116.0,109.2,105.0,112.5,114.0,122.9)

# Exercise 12.3.8
height=c(174,183,176,169,183,186,178,175,172,179,171,184,200,195,176,176,190)
flow=c(733,572,500,738,616,787,866,670,550,660,575,577,783,625,470,642,856)