Balance Point
Effects on Central Tendency
100
What is the balance point?
3
100
The following are the results of the last math quiz: 90, 95, 85, 90, 100. If I add a 30 to the next quiz, this will happen to the mean. (increase, decrease, stay the same)
what is decrease.
200
This is another name for balance point.
What is mean or average.
200
The following are the results of the last math quiz: 90, 95, 85, 90, 100. If I add a 30 to the next quiz, this will happen to the median. (increase, decrease, stay the same)
What is stay the same
300
This number is the mean for the line plot below. 
What is 11
300
Last week Sarah earned $14, $10, $12, $15, and $13 by doing chores around the house. If she did no chores (earned $0), this happens to the mean. And this happens to the range.
What is mean will decrease but the range will increase.
400
Kyle played in seven basketball games for his team. He recorded how many points he scored in each game in the table below. This number is the balance point. 
What is 12?
400
The number of dogs groomed each week at Pet Sunshine Grooming Co. is 6, 6, 7, 8, 10, and 11. What happens to the mean, median and mode if another 8 is added to the data set?
What is the mean will stay the same
The median will increase
The mode will increase
500
Ms. Rogers made a line plot of how many hours each of her students read during the week. What is the balance point for the data?
What is 7.5?
500
Given the following data which statement is not true?
11 19 12 13 17 12
If 11 is removed, the mean will decrease
if 13 is removed, the mean will increase
If 13 is removed, the median will decrease
If 11 is removed, the median will increase.
The median will decrease