I believe that the missing letter would be E and S which would be in between S and T
Answer: Option B
Step-by-step explanation:
First we assign a name to the events:
Event S: a customer buys socks
Event H: a customer buys shoes.
We know that :

We also know that the probability of S given that H occurs is:

If two events S and H are independent then:

This mean that if two events S and H are independent then:


We know that:
and 

This means that S and H events are dependent.
The answer is the option B
Hello there!
You can use the equation:
504 ÷ 6
84
The hotel can buy 84 pillows.
Hope this helped! :D
Answer:
3
Step-by-step explanation:
9/3
add up the X values and y values and divide by two
X=(-2+6)/2=2
Y=(-4=8)/2=2