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3 years ago

8

Suppose that the die is rolled twice, rather than once. find the probability of rolling an even number on at least one die. find

p(aon first toss or a on second toss)

1 answer:

puteri [66]3 years ago

7 0

We know P = 1/2

X~B(2, 0.5)
n = 1

2C1 from pascal triangle = 2

P(X=0.5)= 2C1 x 0.5 x 0.5

= 0.5
= 50%

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