Answer:
for sample = xbar
population = μ
Step-by-step explanation:
The arithmetic mean for sample can be represented by xbar and it can be calculated as
xbar=∑xi/n
Where xi represents data values and n represents number of data values in a sample.
The arithmetic mean for population can be represented by μ and it can be calculated as
μ=∑xi/N
Where xi represents data values and N represents number of data values in a population.
It is -1/8
You are welcome
Answer:
The graph is wrong
Step-by-step explanation:
even through it goes through the y-intercept (2) it doesn't follow the slope of -3.
we have
------> equation 
------> equation 
Multiply by the equation
------> equation 
Sum equation and equation
Substitute the value of x in the equation
therefore
the answer is the option B
Three to the power of negative four is 81
