X es una v. a.d. que toma dos valores a y b con probabilidades p(a)= p p(b)=1−p Calcula V[X]

i believe it is c.y = 9x

rise over run. 9 units up over 1 unit right or 9/1

b because it contains 40% of the possible results from the random list.  

0,1,2,3 v 4,5,6,7,8,9  

4 integers to 6 integers  

40% success vs 60% fail

step-by-step explanation:

-3.5 degrees per hour

step-by-step explanation:

find the unit rate:

-12   1/4 degrees           12.25 degrees

= - = -3.5 degrees per hour

      3   1/2 hours               3.5 hours