EXPLANATION
If an urn contain:
------> 3 red marbles
------> 4 white marbles
Total number of possible outcomer = 4 + 3 = 7 marbles
The probability formula is:
[tex]\text{Probability}=\frac{Number\text{ of favourable outcomes}}{\text{Number of possible outcomes}}[/tex]
If two marbles are randomly removed, the probability that the two are both white is:
[tex]P(\text{white,white) = }\frac{2}{7}[/tex]
The answer is the option G. ---> 2/7
