Question

14. An urn contains 3 red marbles and 4 white marbles. Two marbles are randomly removed. What is the probability that these two are both white?

Answer 1

EXPLANATION

If an urn contain:

------> 3 red marbles

------> 4 white marbles

Total number of possible outcomer = 4 + 3 = 7 marbles

The probability formula is:

`\text{Probability}=\frac{Number\text{ of favourable outcomes}}{\text{Number of possible outcomes}}`

If two marbles are randomly removed, the probability that the two are both white is:

`P(\text{white,white) = }(2)/(7)`

The answer is the option G. ---> 2/7