Answer:
It can be predicted that out of 350, 105 people buy two pairs of shoes
Step-by-step explanation:
If there are 3 out of 10 customers who buy two pairs of shoes, first, you need to find out how many 10's there are in the 350. [tex]\frac{350}{10}[/tex]=35, there are 35 sets of 10, and if on average there are 3 customers per 10 that buy two pairs of shoes, you would multiply 35 by 3. 35 times 3= 105. It can be predicted that 105 people buy 2 pairs of shoes.
