Correct Answer: Option C
First,
you need to solve for x: (x + x + 2 + x + 4 + x + 6 + x + 8) / 5 = 11 x + x + 2 + x + 4 + x + 6 + x + 8 = 55 5x + 20 = 55 5x = 35 x = 7 Now, substitute for x in each of the last three terms: x + 4 + x + 6 + x + 8 = (7 + 4) + (7 + 6) + (7 + 8) = (11) + (13) + (15) = 39 / 3 = 13 The mean is 13.
Download our app for free and access thousands of MCQ questions with detailed solutions