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 attendant’s expected earnings for this particular period.

The expected earnings of the attendant for this particular period are: $12.66

Step-by-step explanation:

We have to calculate expected mean here:

So,

E(x) = ∑x*f(x)

Therefore, the expected earnings of the attendant for this particular period are: $12.66 ..

one set of data has more variation than the other. hope this !

im guessing (23,14). hope this : )