From 8fd691fc415b4db8ff7193d76ee34f84690f035b Mon Sep 17 00:00:00 2001 From: Bltzz <47246028+Bltzz@users.noreply.github.com> Date: Tue, 24 Mar 2020 15:05:56 +0100 Subject: [PATCH] Update README.md increased readablility --- README.md | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/README.md b/README.md index 4d5c5d7..a62e9fb 100644 --- a/README.md +++ b/README.md @@ -5,12 +5,18 @@ Description: Steven is a suit-seller in Mississippi. Once a year, he gets rid of his unsold stock, selling separately jackets and trousers, at $10, $20, $30, $40 and $50. He’d like to know how much each piece of clothing is likely to yield (expected value and variance). + Steven gave his statistician friend a mission: to deduce from his past results the probability to sell a $x jacket and $y trousers together. It appears that the probability is defined by the following formula (a and b being integers greater than 50, depending on the economic climate): + ((a − x)(b − y)) / ((5a − 150)(5b − 150)) + Let’s call X, Y and Z, respectively, the random variables that represent “the price of a sold jacket”, “the price of sold trousers” and “the price of a sold suit”. Given the values of a and b, your software must print: + • an array summing up the joint law of (X, Y ), and the marginal laws of X and Y , + • an array summing up the law of Z, + • expected values and variances of X, Y and Z.