A lottery sells 1000 tickets at $1 apiece. There is one winner who receives $100, and 5 second place winners who receive $50 each. What is the expected value of a ticket? In your final answer, include the necessary calculations.

chance of winning $100 = 1/1000

chance of winning $50 = 5/1000 = 1/200

cost of ticket = -1

E[x] = 100* 1/1000 + 50* 1/200 -1

= 0.1 + 0.25 - 1 = -0.65

Step-by-step explanation:

hope this helps

step-by-step explanation:

given that there are two triangles j'k'l' and jkl>

the former is got by dilating the second one.

when drawn on a grid, (graph paper) coordinates of vertices of first triangle is

(6,12)j, (9,6)k and (12,9)l

side jk has length = distance between j and k

=

side j'k'=distance between j' and k'

=

ie j'k'l' has sides 1/3 of that of corresponding sides of jkl.

hence scale factor of 1/3 is used to get j'k'l'from jkl

think the answer would beb