Answer:
Side CA = 7.8
Step-by-step explanation:
<u>Given:</u>
Acute angled .
AB = 10
BC = 12
We can use cosine rule here to find the side AC = b
<em>Formula for cosine rule:
</em>
Where
a is the side opposite to
b is the side opposite to
c is the side opposite to
To the nearest tenth <em>b = 7.8</em>
i don’t know if your school does PEMDAS but it stands for parentheses, exponents, multiplication, division, addition, and then subtraction. so you would multiply, then add, and then subtract.
Answer:
Automated menu
Live agent menu
So then we can conclude that we have lower variation for the Live agent menu since the coefficient of variation is lower compared to the Automated menu
Step-by-step explanation:
We can solve this by case
Automated menu
Data: 11.7 7.4 3.9 2.9 9.2 6.3 5.5
We can begin calculating the mean with the following formula:
And replacing we got:
Now we can calculate the standard deviation with the following formula:
And replacing we got:
Now we can calculate the coeffcient of variation with this formula:
And replacing we got:
Live agent menu
Data: 6.2 2.9 4.4 4.1 3.4 5.2 3.7
We can begin calculating the mean with the following formula:
And replacing we got:
Now we can calculate the standard deviation with the following formula:
And replacing we got:
Now we can calculate the coeffcient of variation with this formula:
And replacing we got:
So then we can conclude that we have lower variation for the Live agent menu since the coefficient of variation is lower compared to the Automated menu