WJEC Maths for AS: Applied sample

Contents 4 Topic 4 Statistical distributions 69 4.1 The binomial distribution as a model 70 4.2 The Poisson distribution as a model 78 4.3 The discrete uniform distribution as a model 84 4.4 Selecting an appropriate probability distribution 85 Test yourself 88 Summary 90 Topic 5 Statistical hypothesis testing 91 5.1 Understanding and applying the language of hypothesis testing 92 5.2 Finding critical values and critical regions and using signiϐicance levels 95 5.3 One- and two-tailed tests 101 5.4 Interpreting and calculating type I and type II errors 102 5.5 Conducting a hypothesis using p -values 103 Test yourself 109 Summary 111 AS Unit 2 Section B: Mechanics Topic 6 Quantities and units in mechanics 113 6.1 Fundamental quantities and units in the SI system 114 6.2 Using derived quantities and units 114 Test yourself 115 Summary 116 Topic 7 Kinematics 117 7.1 The terms used in kinematics (position, displacement, distance travelled, velocity, speed and acceleration) 118 7.2 Displacement–time graphs 119 7.3 Velocity–time graphs 121 7.4 Sketching and interpretation of velocity–time graphs 122 7.5 Using the equations of motion (i.e. the suvat equations) 126 7.6 Applying the suvat equations to vertical motion under gravity 132 7.7 Using calculus in kinematics 137 Test yourself 143 Summary 145