Question

There are 5 green 7 red balls. Two balls are selected one by one without replacement. Find the probability that first is green and second is red.

Answer 1

Step-by-step explanation:

• number of Green balls =5
• number of red balls = 7
• total number of balls = 7+5 = 12
• probability that the first ball is green = 5/12
• probability that the second ball is red =7/12

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Answer 2

Answer:

there are different kinds of outcome will appear in this problem

Step-by-step explanation:

RED BALLS = 7

GREEN BALLS = 5

TOTAL = 12

Probability of green = 5/12

Probability of red = 7/12

sample space = {G1,G2,G3,G4,G5,R1,R2,R3,R4,R5,R6,R7}