You use a closed dot with the greater than or less than with the line under the symbol or the greater than or equal to or the less than or equal to symbols. The line indicates a closed dot.
If I understand what you are asking, you can use the median as an average since it is not affected by the mean ( median is a measure of center). Since a mean is affected by outliers, it might lower the score if there are very low outliers. But note that if there are outliers way <em>greater </em>it can increase the average. You can use the Inter Quartile Range if shown on a box plot ( measure of variability).
Answer:
distributive
Step-by-step explanation:
You broke down the problem and made it longer instead of solving the parenthesies.
Answer: 180 people
I hope i helped you! I wish you luck on the test!
The ratio of that question is 7:12