Answer:
6
Step-by-step explanation:
(6*200)+(10*60)=1800
(6*50)+(10*10)=400
Answer:
(-2,-6) (6,2)
Step-by-step explanation:
Answer:
The standard error of the mean is 0.02
Step-by-step explanation:
Here, we want to calculate the standard error of the mean.
Mathematically;
standard error of mean = SD/ √n
where SD is the standard deviation and n is the number of samples
From the question, SD = 0.22 and n = 121
Inserting this into the equation
Standard error of the mean = 0.22/√121
= 0.22/11 = 0.02
Answer:

Step-by-step explanation:
Here first open the inner parentheses and use the distributive property,
