The random variableX

has a uniform distribution with values between11

and19

.

What is the mean and standard deviation ofX

?

(Round your answer to three decimal places.)

Select the correct answer below:

mean is11

; standard deviation is8

3

2.667

mean is11

; standard deviation is43

-

3

2.309

mean is15

; standard deviation is8

3

2.667

mean is15

; standard deviation is43

-

3

2.309

mean is15

; standard deviation is46

-

3

3.266

mean is11

; standard deviation is46

-

3

3.266