Statistics

Degrees: Pharmacy, Biotechnology Date: January 17, 2022 Question 1 A diagnostic test for a disease with a prevalence of 10% has a positive predictive value of 40% and negative predictive value of 95%.

Degrees: Pharmacy, Biotechnology Date: November 22, 2021 Question 1 The cranial capacity (in dm$^3$) of a primate population follows a normal probability distribution $X\sim N(\mu,\sigma)$. The chart below shows the Gauss bell of $X$.

Degrees: Pharmacy, Biotechnology Date: October 25, 2021 Question 1 The table below shows the number of daily sugary drinks drunk by a sample of 16-years-old people. $$ \begin{array}{|c|r|r|r|r|} \hline \mbox{Drinks} & n_i & f_i & N_i & F_i\newline \hline 0 & & 0.

Degrees: Physiotherapy Date: June 7, 2021 Descriptive Statistics and Regression Question 1 To study the effectiveness of a new treatment for the polymyalgia rheumatica a sample of patients with polymyalgia was drawn and they were divided into two groups.

Degrees: Physiotherapy Date: May 5, 2021 Probability and random variables Question 1 The average number of injuries in an international tennis tournament is 2. Compute the probability that in an international tennis tournament there are more than 2 injuries.

Degrees: Physiotherapy Date: March 17, 2021 Descriptive Statistics and Regression Question 1 The chart below shows the distribution of the number of subjects passed in a sample of first year students of a degree.

Degrees: Pharmacy, Biotechnology Date: January 18, 2021 Question 1 The table below contains the differences between the grades in the final school exam and the entrance exam in a sample of public high schools ($X$) and private high schools ($Y$):

Degrees: Pharmacy, Biotechnology Date: November 23, 2020 Question 1 A test to detect the COVID19 was applied to 850 persons infected by COVID19 with a positive outcome in 800 of them, and it was also applied to 9150 non-infected persons with a positive outcome in 10% of them.

Degrees: Pharmacy, Biotechnology Date: October 26, 2020 Question 1 The table below shows the daily number of patients hospitalized in a hospital during the month of September. $$ \begin{array}{cr} \mbox{Patients} & \mbox{Frequency} \newline \hline (10,14] & 6 \newline (14,18] & 10 \newline (18,22] & 7 \newline (22,26] & 6 \newline (26,30] & 1 \newline \hline \end{array}$$

Degrees: Physiotherapy 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.