The question is asking me to round to three decimals. I know that the first answer is 5/18 and the second is 13/18 but I am not rounding correctly? Sorry if this is dumb I cannot understand.
When submitting your answers, round to 3 decimals, for example 0.12345 would be rounded to 0.123.
An urn contains five red balls and four white balls. A sample of two balls is selected at random from the urn. Find the probability that
(a) only red balls are selected.
(b) at least one white ball is selected.