Question

An urn contains 8 white and 3 red balls. if two ball are drawn at random, find the probability that : (1) both are white (2) both are red

Answer 1

as the total no of balls are 11

1.3/11
2.8/11

Answer 2

Answer:

(1) Both are white=28/55

(2) Both are red=3/55

Step-by-step explanation:

Tip

• Probability is the state of being able to do something. It's a branch of mathematics that deals with the randomness of events. From zero to one, the value is stated. In mathematics, the concept of probability was established to predict the likelihood of occurrences occurring.

Given

An urn contains 8 white and 3 red balls

Find

(1) both are white

(2) both are red

Solution

$\mathrm{P}(\text { both White })=8 / 11 \times 7 / 10=56 / 110=28 / 55$

$P( both Red )=3 / 11 \times 2 / 10=3 / 55$

Final Answer

(1) Both are white=28/55

(2) Both are red=3/55

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