:

1. The frequency distribution in Table B depicts the ages of the richest 400 Indians. Suppose we randomly select one of these individuals.
2. What is the probability that the individuals is between 50 to 60 years old
3. What is the probability that the individuals is younger than 60 years old?
4. What is the probability that the individuals is at least 80 years old?

Table B Frequency distribution of ages of 400 richest Indians

Ages	Frequency
30 up to 40	7
40 up to 50	47
50 up to 60	90
60 up to 70	109
70 up to 80	93
80 up to 90	45
90 up to 100	9

1. What are the defining properties of a probability? How probabilities are expressed as odds?
2. The summer of 2009 proved to be a difficult period for the travelers. IGI Airport topped the list with the lowest on-time arrival rate: the likelihood that a plane arrived on-time occurred only 56% of the time. Travelers at NSB Airport fared a bit better, where the time arrival rate was 74%. Calculate the odds for plane arriving on-time at IGI Airport and at NSB's Airport.