The set of all possibilities is called sample space and is denoted by S.
So, S = {NBD, NDB, BDN, BND, DBN, DNB} and n(S) = 8
and we need to find the probability of NBD
E = {NBD} and n(E) = 1
The probability of an even is defined by p(E) = 
Hence, p(E) = 
Answer:
Here's what I get
Step-by-step explanation:

The net chance in Jacob's savings was +80 in the first week, -85 in the second week, and -5 overall.
Answer:
165°
Step-by-step explanation:
Answer:
Slope = rise / run
= -12 / 1500 (It's -12 and not 12 because a drop means it's decreasing)
= -0.008
See the attachments for the answer :)