Angelina is a waitress at an upscale restaurant which automatically calculates a 20% tip for the waitresses. She usually receives between $300 and $350 in tips on Saturday and Sunday, but, for the last two weekends, she has only received a total of $234.

Which of the following is a valid conclusion?
A.
The amount of Angelina's tips are caused by lower restaurant sales.

B.
The amount of Angelina's tips is correlated to, but not caused by, lower restaurant sales.

C.
Angelina has not been as nice to the customers, so she is not receiving the same amount of money in tips.

D.
No conclusion can be drawn about the relationship between restaurant sales and Angelina's tips.

Question

Angelina is a waitress at an upscale restaurant which automatically calculates a 20% tip for the waitresses. She usually receives between $300 and $350 in tips on Saturday and Sunday, but, for the last two weekends, she has only received a total of $234.

Which of the following is a valid conclusion?
A. 
The amount of Angelina's tips are caused by lower restaurant sales.

B. 
The amount of Angelina's tips is correlated to, but not caused by, lower restaurant sales.

C. 
Angelina has not been as nice to the customers, so she is not receiving the same amount of money in tips.

D. 
No conclusion can be drawn about the relationship between restaurant sales and Angelina's tips.

Ashely · Answer

which answers can you eliminate?

crispyrat · Answer

so first kets looks through this
we can eliminate C as no matter her service the waiter automatically gets 20%
And we can also cross of D as obviously how much money the restaurant makes affects her pay. 
A and B

crispyrat · Answer

@school954