An insurance company wants to study whether offering incentives for preventative care reduces overall health care costs. They select a random sample of 200200200 of their customers. They use a random number generator to select 100100100 customer account numbers to offer the incentive. The remaining 100100100 customers are assigned to the control group. What type of experiment design is this

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$16

$15

$4

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step-by-step explanation:

amount of oatypop that contains the prize = 40%

amount   of oatypop which doesn't contain the prize = (100-40)=60%

probability that hannah will win a prize

    = s +f s +f f s+ff   f s+ff f f s+ infinity.where f= failure,s= success

=   or 60%

probability that hannah only has to buy 3 or less boxes before getting a prize= (s) and ( f s) and (ff s) and (f f f s)

        = = 87.04 %  

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