Explanation:stem() is used to make a stem plot. 5. Which of the following determine the least-squares regression line ?
A. histo()
B. lm
C. barlm()
D. All of the mentioned
Answer:A
Explanation:stem() is used to make a stem plot. 5. Which of the following determine the least-squares regression line ?
A. histo() B. lm C. barlm() D. All of the mentioned
Explanation:lm calls the lower level functions lm.fit. 6. Which of the following is tool for checking normality ?