SOLUTION: Seven white socks and four black socks are in a bag. Two socks are drawn at
random, without replacement. What is the probability that they have the same
color. Write your answer
Algebra.Com
Question 256390: Seven white socks and four black socks are in a bag. Two socks are drawn at
random, without replacement. What is the probability that they have the same
color. Write your answer as a reduced fraction.
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
Seven white socks and four black socks are in a bag. Two socks are drawn at
random, without replacement. What is the probability that they have the same
color. Write your answer as a reduced fraction.
-------
These are disjoint events.
P(2 white or 2 black) = (7C2 + 4C2)/11C2 = (21 + 6)/55 = 27/55
=================================================================
Cheers,
Stan H.
RELATED QUESTIONS
7 white socks and 23 black socks are in a bag. If 2 socks are drawn at random, what is... (answered by edjones)
7 white socks and 4 black socks are in a bag. 2 socks are drawn without replacement. what (answered by Prithwis)
seven white socks and four black socks are in a drawer. two socks are drawn at random,... (answered by palanisamy)
In your sock drawer, there are 30 black socks, 12 white socks, and 20 brown socks. To the (answered by flame8855)
In your sock drawer , there are 30 black socks, 12 white socks, and 20 brown socks. To... (answered by lynnlo)
In the dryer there are 18 red socks, 24 white socks, 8 blue socks and 10
black socks.... (answered by Edwin McCravy)
A drawer contains four red socks and two blue socks. Three
socks are drawn from the... (answered by greenestamps)
Assessment 9-2A p. 550#16
16. Four blue socks, four white socks, and four gray socks are (answered by edjones)
A drawer has red socks and black socks. You take two socks out at random and the... (answered by checkley71)