Answer:
Range = 19-11 = 13
Median = (12+15)/2 = 13.5
Mean = 14.3
IQR = 5
Variance = 8.45
Standard deviation = 2.907
Explanation:
12 17 19 15 12 18 11 15 12 12
Arranging in ascending order
11 12 12 12 12 15 15 17 18 19
Range = 19-11 = 13
Median = (12+15)/2 = 13.5


Interquartile range

Interquartile range is 5
Mean


Variance = 8.45

Standard deviation = 2.907
Native Americans settled in different regions of the country.
Answer: King gave his most famous speech
Explanation:
Answer: Reginald is using his "SOCIAL MIRROR".
Explanation: Social mirror
Social Mirror Theory states that people wants to judge their actions on a peers interpretation of that action, before their act. In other words, people define and resolve their internal thoughts with what their think people will say, if such thought are acted upon.
Because Reginald know that his friends will probably laugh at him, and he will lose value before them, that is why he decided not to act on such thoughts.
Social mirror is very important, because it gives us a better understanding of how people define us. It also gives us sound mind, and a thought that is not fixed to what you want, but what should be socially acceptable.
Social mirror has helped him to make a socially acceptable decision, instead of going naked down the street