Question
Your school club is running a fundraiser by selling lottery tickets for $2 each. Each ticket indepen- dently has a 1/50 chance of winning $95.
Your school club is running a fundraiser by selling lottery tickets for $2 each. Each ticket indepen- dently has a 1/50 chance of winning $95. A random student with just $10 decides that they will purchase one ticket each day. They decide that they will stop if they either win once (i.e., they will not purchase more tickets), or until they run out of money.
a) Provide the probability distribution of the student's final net gain (give a table of possible values and their associated probabilities). Keep probabilities to 4 siginficant figures. (2.5 marks) b) What is the expected value of the student's strategy? The standard deviation? (2 marks) c) Suppose the student has $ 200 instead, and spends this all on lottery tickets, regardless of the outcome. What is the expected value and standard deviation of the net gain of this new strategy? (2.5 marks) d) Approximately compute the probability that the student makes a profit from this new strategy. (hint: use Poisson approximation to Binomial rv) (3 marks
Step by Step Solution
There are 3 Steps involved in it
Step: 1
Get Instant Access to Expert-Tailored Solutions
See step-by-step solutions with expert insights and AI powered tools for academic success
Step: 2
Step: 3
Ace Your Homework with AI
Get the answers you need in no time with our AI-driven, step-by-step assistance
Get Started