A local pet store conducted a survey to
see how many pets their customers
had. The surveyed 2 groups of people, at random. Here are the results(see attached photo).

Show your work to calculate the mean for group a.

66.25

Step-by-step explanation:

25+30+10+5÷4=66.25

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 %  

step-by-step explanation: