Question

A bag contains 6 Black and 4 red balls. Two balls are drawn. Find the probability that at least one is red

Answer 1

Answer:there are totally 10 balls

P(of red balls)=4/10

P(of black balls)=6/10

Step-by-step explanation:

Answer 2

Answer:

This is related to hypergeometric distribution:

Let X be the number of red balls

Pr(X≥1)=1-Pr(X=0)=1-(15/45)=2/3

Hope this helps :)

Step-by-step explanation: