Answer: 0.3679
Step-by-step explanation:
The cumulative distribution function for exponential distribution is :-
, where
is the mean of the distribution.
Given : A mean length of waiting time equal
minutes
i.e. Mean number of calls answered in a minute 
Now, the proportion of callers is put on hold longer than 2.8 minutes is given by :_

Hence, the proportion of callers is put on hold longer than 2.8 minutes = 0.3679
Answer:
4949/200=
Step-by-step explanation:
Answer:
Thanks for asking!
Step-by-step explanation:
The answer would be 4/11. 3/20 in decimal form is 0.15. 12/5 is 2.4. 7/16 is 0.4375. 4/11 is 0.36 repeating.
Well if your finding the slope and y intercept
Slope is -4
Y-int is (0,9)
So you would make the. -4 into -4/1 the you would plot (0,9) on the graph first then on the Y line go down 4 and move to the right 1
( I’m not sure if this helps)