Marital name changing. as a female, how likely are you to follow tradition and change your last name to your husband’s when you get married? this was one of the questions investigated in research published in advances in applied sociology (nov. 2013). according to the study, the probability that an american female will change her last name upon marriage is .9. consider a sample of 25 american females. this is a binomial random variable. how likely is it that 20 or more of these females will change their last name upon marriage?

use an equation of ratios to determine the amount of gas needed to fill the tank.

    0.2             0.8

  =    

288.75             x

                                                              231 gal

so, 0.2x = (0.8)(288.75 gal), and x = = 1155 gal.

                                                                0.2

it would take 1155 gal. to fill the tank.

the cost would be

1155 gal         $3

* = $3465   (answer)

      1           1 gal

hope this you

the answer to question 1 is -8, 28.

step-by-step explanation:

eight hundred an fifty one point four hundred and fifteen

800+50+1+.4+.01+.005