Answer:
The true mean 
it probably could be larger, smaller, or equal to 22
Step-by-step explanation:
False.
By definition the sample mean is defined as:
For this case the value for the sample size is n =190 and the calculated sample mean is 
. This value represent the sample and for this case we can't assume that this value represent at all the population as the population mean since we probably have variability from the data of the students at City College.
So we can conclude that the true mean it probably could be larger, smaller, or equal to 22
You divide by four because there are 4 sides of a square and they are all equal
Answer:
(a - √b)
Step-by-step explanation:
Roots occur as positive and negative conjugates. Therefore, the conjugate of (a + √b) is (a - √b)
