a researcher selects a sample of 100 people to investigate the relationship between gender (male/female) and registering to vote. the sample consists of 40 females, of whom 30 are registered voters, and 60 males, of whom 40 are registered voters. if these data were used for a chi-square test for independence, what is the observed frequency for registered males? a. 28
b. 12
c. 42
d. 50

answer: 457.14

step-by-step explanation:

205 - 45 = 160

160 / .35 = 457.142857

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:

r and t.

both are 64 degrees.

it's undefined because anything multiplied by 0 is 0. that said, 7 days is 168 hours