Question

Suppose the MATLAB variable exampleArray is defined by: exampleArray = [4, 6, 10; 11, 7, 6; 0, -1, -4]; Click on the array that shows the results of the MATLAB command: x = median(exampleArray, 2)

Options:
A) [4; 7; -1]
B) [10; 6; 0]
C) [6; 7; -1]
D) [6; 7; 0]

Answer 1

The median of each row of the exampleArray after applying the MATLAB command 'median(exampleArray, 2)' is [6; 7; -1], which corresponds to option C.

Step-by-step explanation:

The MATLAB command x = median(exampleArray, 2) calculates the median of each row of the exampleArray. When the second argument is 2, the function operates across the rows. Let's calculate the median for each row:

• Row 1: [4, 6, 10] - Median is 6
• Row 2: [11, 7, 6] - Median is 7
• Row 3: [0, -1, -4] - Median is -1

Therefore, the resulting array x after running the command will be:

[6;7;-1]

This matches option C) [6; 7; -1] which is the correct answer to the student's question.