Show as much work reasoning as possible Attach work papers a

Show as much work reasoning as possible. Attach work papers as needed. Do ANYTHREE of these. (5pts. each) Melinda buys one raffle ticket al the Spring Fling. There is one prize of $1,000, on prize of $500, and five prizes of $100. There were 1000 tickets sold at $3 each. Melinda expectation (the expected value of her ticket)?

Solution

B) given n p
10
0.5
Given n=10 p=0.5 q=0.5
P(7)=10c7 * 0.5^7 * 0.5^3
P(7) = 0.1171875
P(8)=10c8 * 0.5^8 * 0.5^2
P(8) = 0.0439453125
P(9)=10c9 * 0.5^9 * 0.5^1
P(9) = 0.009765625
P(10)=10c10 * 0.5^10 * 0.5^0
P(10) = 0.00976000
P(7)+P(8)+P(9)+P(10) = 0.1719

D)

given n=35

p=0.1 r=5

mean = n*p
mean lamda= 3.5
p(5)= (3.5^5)/(5!*e^3.5)
p(5)=0.1322
Total Probability = 0.1322