If y>0 then y has to be 1 or more so
8= x+y
8= x + 1
-1
7= x
so x is < 8
Answer is A
Answer:
- 3.027
Step-by-step explanation:
First price = 10000 ; second price = 700
Number of tickets sold = 11000
Ticket cost = $4
Probability that a ticket wins grand price = 1 / 11000
Probability that a ticket wins second price = 1 / 11000
X ____ 10000 _____ 700
P(x) ___ 1 / 11000 ___ 1/11000
Expected winning for a ticket buyer :
E(X) = Σx*p(x)
E(X) = (1/11000 * 10000) + (1/11000 * 700) - ticket cost
E(X) = 0.9090909 + 0.0636363 - 4
E(X) = - 3.0272728
E(X) = - 3.027
Answer:
See below in bold.
Step-by-step explanation:
0.45 = 4.5 * 10^-1.
63/100 = 0.63
0.63 = 6.3 * 10^-1.
Answer:
0.2
Step-by-step explanation:
i dont know but i think
Answer:
118.75
Step-by-step explanation:
The mean is all of the numbers added up and then divided by the number of numbers. Example: 1+1+1 number of numbers: 3. 1+1+1=3. 3÷3=1. In this case, it would be 102+124+140+130+120+110+124+100=950. The number of numbers is 8, so you would go 950÷8. Then you would get an answer of 118.75. I hope I helped!
