Answer:
1. -75
2. 0.785/77
3. -2
Step-by-step explanation:
First, you would divide -120 by 8 which is -15. Then, you would multiply -15 times five which is -75.
Your expected value is 36*2/6 + -36*4/6, which is equal to $-12.
Answer:
20
Step-by-step explanation: 5 times 20 = 100
Answer:
Step-by-step explanation:
You need to take the payment and substract $1 from them, corresponding to the bet cost. With this in mind, you will win $1 with probability 18/38 = 9/19 and you will lose $1 with probability 20/38 = 10/19. With this in mind, the distribution of X is given by the following probability mass function, with range {-1,1}
F(x) = -5x
g(x) = 8x² - 5x - 9
(f×g)(x) = ?
= ((-5x)(8x²-5x-9))
= -40x³ + 25x² + 45x → The answer Opsi D