The Sun's increase in activity.
Answer:
Distinction from Tundra Climate
For example, tundra climates usually have a month in which the average temperature rises beyond the freezing point, while this does not occur in polar climates. The hotter month allows the ice in tundra climates to melt, which enable plants and animals to survive.
Answer:
The probability of a Virgin America flight being delayed by a late-arriving aircraft is 1.73%. The probability of a Virgin America flight being delayed for any reason is 8.01% (as calculated in Question 1).
So if a Virgin America flight is delayed, the probability that it is because of a late-arriving aircraft is 1.73/8.01=21.6%
Explanation: