Time-Domain Representation Signals are represented as sequences of numbers, called samples Sample value of a typical signal or sequence denoted as x[n] with n being an integer in the range x[n] defined only for integer values of n and undefined for non-integer values of n

Algorithms Day 12 L8.2 A weakness of hashing Problem: For any hash function h, a set of keys exists that can cause the average access time of a hash table to skyrocket. IDEA: Choose the hash function at random, independently of the keys

The expectation or expected value of a random variable is a single number that tells you a lot about the behavior of the variable. Roughly, the expectation is the average value, where each value is weighted according to the probability that it comes up. Formally, the expected value of a random variable r defined on a sample space s is: (B)=∑R()Pr(o) To appreciate its signficance, suppose S is the set of students in a class, and we select a student uniformly at random. Let r be the selected student's exam score. Then

The March-April 1974 issue for businesses selling It is now widely recognized that one of the main of HBR carried an article products that are pur. determinants of business profitability is market that reported on Phases I chased infrequently by a share. Under most circumstances, enterprises that and II of a project spon-

Purposes To get students have some pM edg about the roles of men and en a present and in the past To understand the purpose of writing and organization of the text To reinforce some basic linguistic knowledge by doing various types of exercises

外研版（三起）（2012）小学英语六年级下册Module 6 Unit 2 The name of the spaceship is Shenzhou V.Module 6 Unit 2 The name of the spaceship is Shenzhou V.课件(10)

This volume is an attempt to explore the value of rational-choice analysis for the study of international law. As the editors suggest, the field of international law has been quite resistant to rational-choice analysis. It is important to recognize, however, that the enterprise of which this volume is an example is not new. Political scientists have used

外研版（三起）（2012）小学英语六年级下册Module 6 Unit 2 The name of the spaceship is Shenzhou V.Module 6 Unit 2 The name of the spaceship is Shenzhou V.课件(9)

Chapter 6 Viruses 6.1 General Properties of Viruses 6.2 Structure of viruses 6.3 The cultivation of viruses 6.4 General Features of Virus Reproduction 6.5 one-step growth curve 6.6 Temperate Bacteriophages: Lysogeny and Lambda

1. The B-DNA structure found in solution is a A right-handed double helix of antiparallel chains (11 bp/turn) B left-handed double helix of antiparallel chains (~10 bp/turn) C right-handed double helix of antiparallel chains (~10 bp/turn). D left-handed zig-zag helix of antiparallel chains(12 bp/turn)