Reference: bambach, m. r., r. j. mitchell, r. h. grzebieta, and j. olivier. 2013. the effectiveness of helmets in bicycle collisions with motor vehicles: a case control study. accident analysis and prevention 53: 78-88. researchers conducted a chi-square test of independence with this data. chi-square test results: chi-square test statistic = 112.7, p-value < 0.0001. the expected counts describe what we expect to see if which of the following is correct? check all that apply.

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:

complete the steps to find the area of the trapezoid.

area of rectangle = 256   square units

area of triangle 1 = 24  square units

area of triangle 2 = 16  square units

area of triangle 3 =   96 square units

area of trapezoid = 120  square units

step-by-step explanation: