Read the following and answer the questions.

To study perception, a researcher selects a sample of participants (n = 12) and asks them to hold pairs of objects differing in weight, but not in size, one in each hand. The researcher asks participants to report when they notice a difference in the weight of the two objects. Below is a list of the difference in weight (in pounds) when participants first noticed a difference. Answer the following questions based on the data given in the table.

Difference in Weight
4	8
9	5
12	7
6	15
10	4
8	8

1. State the following values for this set of data:
2. Mean _____
3. Median ______
4. Mode(s) ______
5. What is the shape of this distribution? Hint: Use the values of the mean, median, and mode to infer the shape of this distribution.