Ejercicios DISTRIBUCIÓN NORMAL 2 bachillerato resueltos de examenes Estadística [ tipificación ]

Normal or Gaussian Distribution exercises from solved exams, 2nd year of high school (Bachillerato), university entrance exams (EvAU/EBAU). We'll work through 4 classic problems. The first is an example where we'll learn how to perform reverse standardization. In the second exercise, we'll calculate the cut-off score, then we'll calculate the mean, and finally the standard deviation. If you found this helpful, please LIKE and SUBSCRIBE http://goo.gl/CMFnu0 and turn on notifications. Share it on social media and in class groups ;) Normal Distribution Playlist    • Distribución Normal 00 Tabla   Probability Playlist    • Probabilidad , la place , bayes , total di...   Follow the course Geometry in Space    • Geometría en el espacio 🚀 Vectores - Espac...   Matrices and Determinants Playlist    • MATRICES y DETERMINANTES  sistemas desde cero   Electric Field Playlist    • ley de coulomb Campo electrico , electroes...   Integrals Playlist    • Integrales inmediatas resueltas aprender i...   Playlist Gravitational Field    • Campo gravitatorio 2 Bachillerato ley de g...   Chemical Equilibrium Playlist    • Equilibrio Químico 00a introducción ejerci...   Professor10demates Formulas    • Formularios y resúmenes Profesor10demates ...   Wave Motion Playlist    • Movimiento ondulatorio ejercicios resuelto...   L'Hopital's Rule    • 👉 Regla de L´Hopital 🔝 explicación y ejerc...   Statements: The time taken, in minutes, to obtain the answer to a test to detect a certain disease follows a normal distribution with a mean of 20 and a standard deviation of 4. a) In what percentage of tests is the result obtained between 16 and 26 minutes? b) How many minutes are needed to guarantee that the answer has been obtained in 96.41% of the tests? c) How many minutes are needed to guarantee that the answer has been obtained in 37.45% of the tests? The scores obtained by 1000 candidates followed a normal distribution with a mean of 4.05 and a standard deviation of 2.5. a) How many candidates scored above 5? b) If we have to allocate 330 places, calculate the cut-off score, showing your reasoning. The speed of vehicles on a highway with a speed limit of 120 km/h follows a normal distribution with a mean µ km/h and a standard deviation s = 10 km/h. It is known that 69.15% of vehicles do not exceed the speed of 130 km/h. a) Calculate the mean of this distribution. b) What percentage of vehicles do not exceed the maximum permitted speed? c) The DGT (Spanish Directorate General of Traffic) establishes a fine of 100 euros for vehicles traveling between 120 and 150 km/h. What is the probability of being penalized with this fine? A company has carried out a personnel selection process. The scores obtained by the applicants in the selection process follow a normal distribution, X, with a mean of 5.6 and a standard deviation σ. Given that the probability of obtaining a score X ≤ 8.2 is 0.67, calculate σ. 00:00 Introduction 01:41 Solved Exercise 1 19:12 Calculate the cut-off score for exercise 2 28:20 How to calculate the mean of a normal distribution 37:41 How to calculate the standard deviation of a normal distribution