Answer:
Total songs = 15
Liked songs = 3
Un liked songs = 15-3=12
Find the probability that among the first two songs played
(a) You like both of them.
Probability that among the first two songs played you like both of them = 
(b) You like neither of them.
Probability that among the first two songs played you like neither of them = 
(c) You like exactly one of them.
Probability that among the first two songs played you like exactly one of them = 
(d) Redo (a)-(c) if a song can be replayed before all
(a) You like both of them. Would this be unusual?
Probability that among the first two songs played you like both of them = 
(b) You like neither of them.
Probability that among the first two songs played you like neither of them = 
(c) You like exactly one of them.
Probability that among the first two songs played you like exactly one of them = 
Answer:
The probability of getting 2 socks of the same color is 1/3.
Step-by-step explanation:
In the drawer,
Number of blue socks = 4
Number of white socks = 8
Number of gray socks = 4
Total number of socks = 4 + 8 + 4 = 16
Total ways to select 2 socks form 16 socks is

Total ways to select 2 socks of the same color is
T = Possible ways of (2 blue + 2 white +2 gray) socks
= 
= 
= 
The probability of getting 2 socks of the same color is



Therefore, the probability of getting 2 socks of the same color is 1/3.
Answer:
Area = 9
Step-by-step explanation:
Remark
It's a right triangle. Therefore the area can be found with the two legs (a and b)
Givens
a = 3
b = 6
Area = a*b/2
Solution
Area = 3*6/2
Area = 18/2
Area = 9
You would do 150/15=10 since this is a percent change it to a decimal(.10) to check do 150x.10=15 and 15/.10=150