Out of 240 total population of the student 179 were alive whereas the remaining 59 were dead. The mean of a live person is 87.21 whereas the dead peoples mean is 96.19. The ratio of dead people is higher than the a live people. With a changing in their mean the standard deviation is also change. Average Diastole blood pressure data consist of two categories, person is alive and dead. Mean value of the alive person is 0.833 which shows that there is less variation in data. If we can observe the value of dead people, ...