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An attendant at a car wash is paid according to the number
Chapter 5, Problem 4.6(choose chapter or problem)
An attendant at a car wash is paid according to the number of cars that pass through. Suppose the probabilities are 1/12, 1/12, 1/4, 1/4, 1/6, and 1/6, respectively, that the attendant receives $7, $9, $11, $13, $15, or $17 between 4:00 P.M. and 5:00 P.M. on any sunny Friday. Find the attendants expected earnings for this particular period.
Questions & Answers
QUESTION:
An attendant at a car wash is paid according to the number of cars that pass through. Suppose the probabilities are 1/12, 1/12, 1/4, 1/4, 1/6, and 1/6, respectively, that the attendant receives $7, $9, $11, $13, $15, or $17 between 4:00 P.M. and 5:00 P.M. on any sunny Friday. Find the attendants expected earnings for this particular period.
ANSWER:Step 1 of 2
The probability distribution table is as follows.
\(x\) |
$7 |
$9 |
$11 |
$13 |
$15 |
$17 |
\(f(x)\) |
1/12 |
1/12 |
1/4 |
1/4 |
1/6 |
1/6 |