We roll a fair die repeatedly until we see the number four appear and then we stop. the outcome of the experiment is the number of rolls. a. describe a sample space ohm and a probability measure p to model this situation. b. calculate the probability that the number four never appears.

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Step-by-step explanation:

given that we roll a fair die repeatedly until we see the number four appear and then we stop.

the number 4 can appear either in I throw, or II throw or .... indefinitely

So X = the no of throws can be from 1 to infinity

This is a discrete distribution countable.

Sample space= {1,2,.....}

b) Prob ( 4 never appears) = Prob (any other number appears in all throws)

=

where n is the number of throws

As n tends to infinity, this becomes 0 because 5/6 is less than 1.

Hence this probability is approximately 0

Or definitely 4 will appear atleast once.

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step-by-step explanation:

the answer is c hope it

step-by-step explanation: