• exercise 8620180907101225.R Data
• exercise 8_6.R Data
• exercise 8520180907101220.R Data
• exercise 8_5.R Data
• exercise 8420180907101220.R Data
• exercise 8_4.R Data
• exercise 8320180907101220.R Data
• exercise 8_3.R Data
• exercise 8220180907101220.R Data
• exercise 8_2.R Data
• exercise 8120180907101222.R Data
• exercise 8_1.R Data