10 is closer to the number line. -12 is technically 12 if you convert it to a positive. 10<12
Ok thanks for letting me know !
Answer:
-$9.6
Step-by-step explanation:
X : ___ 1000 ____600 ____300 ___200
P(x): __ 1/1000 _ 2/1000 _ 2/1000 _ 5/1000
Expected winning per ticket :
Σ(X * p(X)) = [(1000 * 1/1000) + (600 * 2/1000) + (300 * 2/1000) + (200 * 5/1000) - price per ticket
= 1 + 1.2 + 0.6 + 1 - 7
= 3.8 - 7
= - $3.2
Expextwd winning if 3 tickets Is purchased :
3 * - 3.2= - $9.6
The answer is w*v*1/2*6. All you did is rearrange the numbers. (moved the 6 to the other side, which does not affect anything)
