?If X is an exponential random variable with the probability density function , find E(X).
?

A. ?10
B. ?5
C. ?
D. ?
E. ?1

Answer: C

Mathematics

You might also like to view...

Find the exact value of the expression.sin 260° cos 20° - cos 260° sin 20°

A. - 
B. - 
C.
D. - 

View
Mathematics

Solve.The average value of a certain type of automobile was $13,980 in 1992 and depreciated to $5040 in 1996. Let y be the average value of the automobile in the year x, where x = 0 represents 1992. Write a linear equation that relates the average value of the automobile, y, to the year x.

A. y = -2235x - 3900
B. y = -2235x + 13,980
C. y = -2235x + 5040
D. y = - x - 5040

View
Mathematics

Evaluate the algebraic expression for the given values of the variables.7m + 6 for m = 4

A. 34 B. 22 C. 13 D. 56

View
Mathematics

Find the measure of the indicated angle. Figure is not drawn to scale.m  nFind the measure of ?h.

A. 163° B. 173° C. 73° D. 107°

View
Mathematics