Reference no: EM132389364
Question -
R is necessary for the remaining questions. Online you will find the file student.csv. It contains information on 1548 introduction to statistics students, and has the following columns:
Column 1: height: The height of the student.
Column 2: hsGPA: The high school GPA of the student.
Column 3: pulse: The pulse rate of the student when measured in class.
(a) Plot a QQ plot (normal probability plot) using qqnorm() and qqline(), along with a histogram of students heights. Does this suggest students heights are approximately normally distributed?
(b) Plot a QQ plot (normal probability plot) and histogram for students pulse. Does this suggest students pulses are approximately normally distributed?
(c) Plot a QQ plot (normal probability plot) and histogram for highschool GPA. Does this suggest highschool GPA are approximately normally distributed?
(d) What proportion of the data for height lies within one standard deviation from the mean?
(e) What proportion of the data for pulse lies within two standard deviation from the mean?
(f) What proportion of the data for hsGPA lies within three standard deviation from the mean?
Attachment:- Data File.rar