exam2-practice-plustables

Exam2-practice-plust - 36-225 INTRODUCTION TO PROBABILITY& STATISTICS I – Midterm IIPractice ExamNOTE The actual exam will also have some

Info iconThis preview shows pages 1–4. Sign up to view the full content.

View Full Document Right Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: 36-225 INTRODUCTION TO PROBABILITY & STATISTICS I – Midterm IIPractice ExamNOTE: The actual exam will also have some multiple choice questionsYou mustshow your workin order to get full or be considered for partial credit.You may use a single sheet of notes (8.5 by 11 inches) and a calculator. You may not share acalculator, pencil, paper or anything else during the exam.Your ANDREW ID:Your First Name:Your Last Name:Your Signature:For Grader use:ProblemTotalCorrect123456789Total200*** Do not turn this page until instructed to do so.***1Please check that you have pages 2 through 11 + 3 tables.1. Let the random variableXhave the following density function:fX(x) =k·√x≤x≤1otherwise(a) Find the value ofkthat will make this a legitimate density function.(b) ObtainFX(x), the cdf ofX.(c) FindE(X)(d) FindP(X > .25|X < .75)22. Assume thatX, the time it takes ’student A’ to complete a homework assignment is an exponentialrandom variable with parameterβ= 2hours....
View Full Document

This note was uploaded on 05/16/2011 for the course STATISTICS 225 taught by Professor Finegold during the Spring '11 term at Carnegie Mellon.

Page1 / 14

Exam2-practice-plust - 36-225 INTRODUCTION TO PROBABILITY& STATISTICS I – Midterm IIPractice ExamNOTE The actual exam will also have some

This preview shows document pages 1 - 4. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online