Question

suppose in a bag there are 3white ,2 yellow and 2 purple balls now you picked up 4 balls randomly from the bag . what is the probability that none of them yellow?
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Answer 1

Answer

$\frac{5}{7}$

Step

Probability is defined as the chances of getting the results and how they will occur.

they will occur.For example, In a coin, there is only ahead and tail so having the probability of a head is

ahead and tail so having the probability of a head is $\frac{1}{2}$

ahead and tail so having the probability of a head is $\frac{1}{2}$Similarly, there are 3 white, 2 yellow, and 2 purple balls. The total is 3+2+2 = 7.

ahead and tail so having the probability of a head is $\frac{1}{2}$Similarly, there are 3 white, 2 yellow, and 2 purple balls. The total is 3+2+2 = 7.Not yellow = 3 White + 2 Purple balls; Not yellow = 5.

Probability of Not Yellow =

$probability= \frac{not \: yellow}{total} = \frac{5}{7}$