Throw away the red socks
100%. If there are only white socks in the drawer, then no other color will be drawn.
21/29 = 72.4% (rounded)
The probability is 1.
Well, if this drawer contains that amount of socks of each color, then you will have a 1:5 probability that the the first sock you draw will be white. 7+4+9=20 4(white)/20(in all) 1(white)/5(all) :D
4!
(10/29)(9/28)= 0.110837438 or about 11.1%
100% She will either have at least two brown socks or two white socks in any scenario.
five
I assume you are selecting two socks (one at a time) from the drawer to wear (for example). There are 6 white + 3 black + 3 brown + 8 gray = 20 socks in all So the probability that the first sock chosen to be white is 6/20 since there are 6 socks and 20 socks in total. 6/20 reduces down to 3/10. The probability that the second sock chosen is also white is 5/19 since there are now only 5 white socks left to be chosen and 19 socks in total (since one sock has been taken out). Thus the probability of both socks being white is: probability = 3/10 x 5/19 = 3/38
In order to get a matching pair, you must take out a minimum of two and a maximum of three socks. Reasoning: The question does not specify a color for the pair of socks, it just asks for a pair of matching socks (same color). Hence, the first sock you pull will be either red or white, and the second sock you pull will also be either red or white. If the second sock matches the first one, you have a matching pair (reason for my "minimum of two"). If the second sock did not match the first sock, then you have one red and one white sock. The third sock you pull will also be either red or white and you will have a matching pair of either red or white socks (reason for my "maximum of three").
P(B) = 0.12 = 12%There are 25 pair of socks: 10 Black, 12 White, 3 Brown.P(B) = 3/25 = 0.12 = 12.0%
The answer is 5 socks. There are only 4 different colored socks, so you could only grab a maximum of 4 socks before you would double up on colors. If you wanted to guarantee you had 2 of the same colored sock then you would need to grab 5 socks. wateva