There are 15 balls in all, so
P(red,red) = 3/15 * 2/14 = 1/35
what do you get for the others?
A basket contains 3 red balls 5 blue balls and 7 green balls. Two balls are picked one after the other without replacement find the probability that. (a) Both are red. (b) First is blue, the other is green. (c) One is blue, the other is green. (d) Both are of different colours. (e) They are of the same colours.
6 answers
A certain ore contains 9 percent gold. How much ore (in tons) is needed to obtain 126 tons of gold?
pls ans them
Probability questions
yes
Pls explain better in full please