Hello, Nena500. Here are the answers.
The mean is the average of the numbers. To find this out, you have to add all the numbers and divide by the total amount of numbers. You add 6+9+2+4+3+6+5 and you get 35. Now, divide 35 by 7, because there are seven numbers. And now you get 5. So, the mean is 5. The median is the middle number so you have to arrange all the numbers in order first from least to greatest. The numbers in order would be: 2+3+4+5+6+6+9. So, the median is 5. The mode is the number that occurs most frequently. The mode is then 6 since it occurs twice. The range is the highest number subtracted by the lowest number. That would be 9-2. The range is 7.
~hope it helps :)