The graph below shows three different normal distributions.
Which statement must be true?
Each distribution has the same mean and the same standard deviation
Each distribution has the same mean and a different standard deviation
Each distribution has a different mean and the same standard deviation

asdsaddsa

step-by-step explanation:

jgfjttgbgcfbc

step-by-step explanation:

h56

j

jgh

j

gh

hnh

vnf

d no solution

step-by-step explanation:

statement #3: proof- ang is congruent to ang ecd : angles are congruent.  

step-by-step explanation:

1: the missing angles in statement #3  

a.) acb  

reason- the reason why the answer is acb is because angle ecd and angle acb are both the same size *that's what the word congruent means this is really simple.  

2: the missing word in reason #3  

c.) vertical  

reason- the reason why the answer is vertical is because the angles in that diagram on figure 2 is slanted, which is vertical, and the e and a both lay on vertical lines. along with the other's, but e and a are the 2 main points you want to focus on. and c is kind of like your starting point, because c is for both angles, not just one.  

i hope that was and understanding.