Answer:
You would expect 7 flights to arrive late
Explanation:
First we need to find the fraction of the last flights that were late.
We have 3 out of 6 flights were late. That is;
3 out of 6 =
=

S, half of the flights were late.
So, we expect half of the next flights to be late, as well.
That is, Half of 14 flights =
× 14 = 7 flights