Question

12.. A bag contains '3' red balls and 4 black balls. A ball is selected at
random from the bag, what is the probability that the ball selected
1) Black 2) Red
ре​

Answer 1

Answer:

1)4/7

2)3/7 is the probability of given event

Answer 2

Given that,

• Number of red balls = 3
• Number of black balls = 4

Let's calculate the probability of black balls,

• Probability = Favorable outcomes / Total outcomes
• Favorable outcomes = 3
• Total outcomes = 3+4 = 7
• Probability = 3/7

Let's calculate the probability of black balls,

• Favorable outcomes = 4
• Total outcomes = 7
• Probability = 4/7

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