Question

a die is thrown twice. find the probability of getting 1)the same number both times 2)the sum of numbers as 9​

Answer 1

Answer:

The probability of getting a sum of nine on two throws is the same as the probability of getting nine when throwing two dice at once. It's (4/36) or 1 in 9 { (3,6),(6,3),(4,5),(5,4) }

Step-by-step explanation:

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Answer 2

Answer:

Number of outcomes : 36

And they are :

(1,1) ; (1,2) ; (1,3) ; (1,4) ; (1,5) ; (1,6)

(2,1) ; (2,2) ; (2,3) ; (2,4) ; (2,5) ; (2,6)

(3,1) ; (3,2) ; (3,3) ; (3,4) ; (3,5) ; (3,6)

(4,1) ; (4,2) ; (4,3) ; (4,4) ; (4,5) ; (4,6)

(5,1) ; (5,2) ; (5,3) ; (5,4) ; (5,5) ; (5,6)

(6,1) ; (6,2) ; (6,3) ; (6,4) ; (6,5) ; (6,6)

1. Number of favorable outcomes : 6

2. Number of favorable outcomes : 4

Step-by-step explanation:

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