Original post by SaraGirl

A fair dice is rolled twenty times. The event A is defined as follows: A occurs if and only if

three or more of the rolls result in a six. Evaluate P(A), and give your answer to three decimal

places

How would i answer this question?

three or more of the rolls result in a six. Evaluate P(A), and give your answer to three decimal

places

How would i answer this question?

the number of sixes follows a Binomial distribution, with n = 20 and p = 1/6

Original post by SaraGirl

A fair dice is rolled twenty times. The event A is defined as follows: A occurs if and only if

three or more of the rolls result in a six. Evaluate P(A), and give your answer to three decimal

places

How would i answer this question?

three or more of the rolls result in a six. Evaluate P(A), and give your answer to three decimal

places

How would i answer this question?

What have you tried?

Original post by Muttley79

What have you tried?

I understand what the person above you said, but im just trying to put all the numbers into the formula for figuring out the probability. Im confused because its 3 or more successes, not just 3 successes

Original post by SaraGirl

I understand what the person above you said, but im just trying to put all the numbers into the formula for figuring out the probability. Im confused because its 3 or more successes, not just 3 successes

To get 3 or more successes you can do 1 - [ p(0 successes) + p(1 success) + p(2 successes) ]

Original post by Quadrinomial

To get 3 or more successes you can do 1 - [ p(0 successes) + p(1 success) + p(2 successes) ]

Thank you so much, that makes sense

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