Answer:
A
Step-by-step explanation:
Answer:
I am 100% it's D
Step-by-step explanation:
Answer:

Step-by-step explanation:
For this case we want to find this probability:

Because they want the area to the left of the value. We need to remember that the normal standard distribution have a mean of 0 and a deviation of 1.
We can use the following excel code: =NORM.DIST(-1.55,0,1,TRUE)
And we got:

The other possibility is use the normal standard table and we got a similar result.
Answer:
-2
Step-by-step explanation:
= -2
I hope this helps!
Answer:
I think is C.............