Using it's concept, it is found that the median number of innings pitches is of 7.
What is the median of a data-set?
The median of a data-set is the value that separates the bottom 50% from the upper 50% of values.
In this problem, the data-set is the number of innings pitched by each pitcher, given by: {11, 5, 12, 7, 3}.
Sorting it from least to greatest, we have that it is given by: {3, 5, 7, 11, 12}.
Odd cardinality, hence the median is the middle value, that is, the value at position (5+1)/2 = 3, hence it is of 7.
More can be learned about the median of a data-set at https://brainly.com/question/23923146
