QUESTION 1 The following probability distribution function (pdf) is for the simp

ID: 3177577 • Letter: Q

Question

QUESTION 1

The following probability distribution function (pdf) is for the simple game of rolling four (fair) dice and counting the number of 6's showing.

What is the probability of rolling exactly two 6's?

QUESTION 2

The following probability distribution function (pdf) is for the simple game of rolling four (fair) dice and counting the number of 6's showing.

What is the probability of rolling at least two 6's?

can someone help with both of these?

X P(X) 0 .4822 1 .3858 2 .1157 3 .0154 4 .0008

Question 1

P(rollining exactly two 6's )= 0.1157

P(rolling at least two 6's) = P(rolling two or three or four 6's)

= 0.1157+0.0154+0.0008 = 0.1319

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