Question 1: Find the median of the following data set: 3, 7, 9, 2, 5.

Answer: 5

Question 2: A class has test scores: 85, 78, 92, 85, 88. Find the median score.

Answer: 85

Question 3: Calculate the median of the following set: 11, 13, 9.

Answer: 11

Question 4: Identify the mistake in the following median calculation: Data set: 22, 18, 20. Student says the median is 20.

Answer: Incorrect, the median is 20 only if data is ordered; the correct median is 20 after ordering: 18, 20, 22.

Question 5: In a survey, the ages of 7 people are: 34, 29, 40, 31, 36, 29, 33. Find the median age.

Answer: 33

Question 6: Construct a data set of five numbers where the median is 50.

Answer: Any set with the middle value as 50, for example: 45, 48, 50, 52, 55.

Question 7: A set of data: 12, 15, 10, 14, 13. Find the median after ordering.

Answer: 13

Question 8: Explain why, in a data set with an odd number of values, the median is always one of the data points.

Answer: Because the median is the middle value when data is ordered, and with an odd number of data points, the middle one is exactly the median.

Question 9: What is the median of the data set: 4, 8, 6, 10, 12, 14, 16?

Answer: 10

Question 10: Identify and correct the misconception: 'If the data set has an odd number of values, the median must be the average of the two middle numbers.'

Answer: Incorrect, because with an odd number of data points, the median is the middle value, not the average of two.

Question 11: Given the data set: 25, 30, 28, 26, 29, find the median.

Answer: 28