SOLUTION: PLEASE HELP ME SOLVE......CAN'T FIGURE OUT WHAT I'M DOING WRONG. City Number of Vehicle Tags Sold Bristol 1863 Trevor 3544 Camp Lake 2457 Salem

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Question 462548: PLEASE HELP ME SOLVE......CAN'T FIGURE OUT WHAT I'M DOING WRONG.
City Number of Vehicle Tags Sold
Bristol 1863
Trevor 3544
Camp Lake 2457
Salem 1756
Paddock Lake 2541
One car is selected at random from the cars with vehicle tags from these cities. What is the probability that this car is from Salem? (Round your answer to four decimal places.)

A. 0.1444
B. 0.1521
C. 0.2074
D. 0.1688

I picked the correct answer (A= I guessed)I do not understand how to solve. I have to see steps in order to understand.
Answer by MathLover1(20850) (Show Source):
You can put this solution on YOUR website!

add all numbers of vehicle tags sold in each city:
now divide number of vehicle tags sold in Salem by

so, your answer is:
A.