The number of electrical outages in a city varies from day to day. assume that the number of electrical outages (x) in the city has the following probability distribution.

x f(x)
0 0.80
1 0.15
2 0.04
3 0.01

the mean and the standard deviation for the number of electrical outages (respectively) are:

a. 2.6 and 5.77
b. 0.26 and 0.577
c. 3 and 0.01
d. 0 and 0.8

b) mean = 0.26, standard deviation = 0.577

Step-by-step explanation:

mean is given be formula:

Standard deviation:

step-by-step explanation:

hunhgunyt7 in u uuuhiuteu

the answer is (-8,-5)

step-by-step explanation:

the endpoint to midpoint is half the length. the length is (-2,-1) so when you are at the midpoint just add it to it to find your answer -6+(-2)= -8 and -4+(-1)=-5 so (-8,-5)