The table below shows vacation preferences of families with children under 16 and over 16:

Summer vacation

Camping
Traveling out of state
Activities in local area
Row totals
At least one child under 16
22
12
36
70
All children 16 or older
17
45
20
82
Column totals
39
57
56
152
Sharon mistakenly calculated the marginal relative frequency for traveling out of state to be 57 out of 100 or 57%. What should Sharon have done, and what is the correct answer? (2 points)