Provide an appropriate response.The life expectancy (in years) of patients after they have contracted a certain disease is exponentially distributed with k = 0.4. Find the mean life expectancy and the standard deviation.
What will be an ideal response?
mean 2.5 years, standard deviation 2.5 years.
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Find the absolute extreme values of the function on the interval.F(x) = 
, -3 ? x ? 8
A. absolute maximum is 2 at x = -8; absolute minimum is 0 at x =0 B. absolute maximum is 2 at x = 8; absolute minimum is 0 at x =0 C. absolute maximum is 2 at x = 8; absolute minimum is -2 at x = -8 D. absolute maximum is 0 at x = 0; absolute minimum is 2 at x = 8
Select a setting so that the given points will lie within the viewing rectangle.(0, 0), (40, 70), (90, -20)
A. X min = -10 X max = 100 X scl = 10 Y min = -10 Y max = 80 Y scl = 10 B. X min = 30 X max = 100 X scl = 10 Y min = -30 Y max = 80 Y scl = 10 C. X min = -30 X max = 80 X scl = 10 Y min = -10 Y max = 100 Y scl = 10 D. X min = -10 X max = 100 X scl = 10 Y min = -30 Y max = 80 Y scl = 10
Perform the indicated operation. Assume that all variables are nonnegative.(5
+ 9)(2
+ 8)
A. 72 + 10
+ 40
B. 82
+ 40
C. 122
D. 122 + 58
Find the right- or left-hand limit or state that it does not exist.
(x - 
)
A. 6 B. 0 C. 1 D. Does not exist