Date: June 19, 2020
Descriptive Statistics and Regression Question 1 To see if the confinement due to COVID-19 has influenced the performance of a course, the number of failed subjects of each student in the current course and in the previous year course has been counted, obtaining the table below.
Date: June 02, 2017
Question 1 A study try to determine the influence of electronic gadgets (mobile phones, tables, consoles, etc.) in neck disorders. In the sample of persons studied, it was measured the average daily time using some of these devices, and if the person had or not a cervical disc herniation (CDH).
Date: May 19, 2017
Probability and random variables Question 1 The prevalence of sciatica in a population is 3%. The Lasegue’s test is a neurotension test that is used to diagnose the sciatica with a sensitivity of 91% and a specificity of 26%.
Date: April 01, 2016
Question 1 The chart below shows the cumulative frequency distribution the maximum angle of knee deflection after a replacement of the knee cap in a group of patients.