Final Answer:
The median shoe size in Steven's family is 9.
Step-by-step explanation:
To find the median, arrange the shoe sizes in ascending order: 6, 8, 10, 10.
Since there is an even number of values, the median is the average of the two middle values. In this case, the two middle values are 8 and 10. The average of 8 and 10 is 9.
Therefore, the median shoe size in Steven's family is 9.