Answer:
-10/7
Step-by-step explanation:
(-5/7)/(2/4) = (-5/7)/(1/2) = (-5/7)*(2/1) = -10/7
Answer:
-1.3125
Step-by-step explanation:
m=(y2-y1)/(x2-x1)
m=(3.1-(-3.2))/(-2.4-2.4)
m=(3.1+3.2)/-4.8
m=6.3/-4.8
m=-1.3125
Answer:
Therefore, the mean and the standard deviation for the number of electrical outages (respectively) are 0.26 and 0.5765 respectively.
Step-by-step explanation:
Given the probability distribution table below:

(a)Mean
Expected Value, 
=(0*0.8)+(1*0.15)+(2*0.04)+(3*0.01)
=0+0.15+0.08+0.03
Mean=0.26
(b)Standard Deviation

Standard Deviation 

Therefore, the mean and the standard deviation for the number of electrical outages (respectively) are 0.26 and 0.5765 respectively.
<span>D. A parabola, opening right, is graphed on a coordinate grid. The parabola goes through point 0, 2, point 4, 0, and point 4, 4.</span>