Answer:
No
Explanation:
To determine if the average number of miles flown per passenger increased by one-third between 1966 and 1976, we need to compare the increase in miles flown during that period.
According to the given table:
- In 1966, the average number of miles flown per passenger was 711 miles.
- In 1976, the average number of miles flown per passenger was 831 miles.
To find the increase in miles flown, subtract the 1966 value from the 1976 value:

Therefore, the average number of miles flown per passenger between 1966 and 1976 increased by 120 miles.
To check if the increase is one-third of the initial value, we need to calculate one-third of the 1966 value:

Since the increase in miles flown (120 miles) is not equal to one-third of the initial 1966 value (237 miles), the statement that the average number of miles flown per passenger increased by one-third between 1966 and 1976 is not true.