Preparatoria Actividad Integradora

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Universidad Autónoma de Nuevo León

Preparatoria No. 1

Actividad Integradora

Probabilidad y Estadística

Profr: Sergio Bustamante




Alumno: Omar Jesus Vega Calvillo

No de Lista: 21 Matricula: 1807122

Grupo: 435

 This table shows the 1,200 grades or grades received in 4 exams for 10 classes of 30 students each. The first column is the list of the ten intervals in which the notes have been grouped. The second column is the midpoint or central value of each interval. The third shows the number of notes of each interval, that is, its frequency (for example, there are 20 notes between 0 and 1). The fourth is the quotient between the number of notes in the interval and the total number multiplied by one hundred (100), that is, the relative frequency (there are 1.70% notes between 0 and 1 for each hundred of the 1,200 notes)
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Therefore, among the 1200 grades of the different examinations, there is an arithmetic mean of 7.25 points with a dispersion of +/- 1.90 (between 5.35 and 9.15, the highest percentage of exams). (863), being this the band of normal values for these tests, below the minimum (5.35 points) there are 122 exams, while above the highest (9.15 points) the 215 remaining evaluations are located), with a coefficient of variation of 26.21%

Conclusions

In this project I learned that there are different ways to solve or express the result of a problem, either through tables or data.

These various ways of solving a problem are applied in daily life.

With all that we have learned, we can conclude that statistics is a branch of mathematics that is not very visible in everyday life but is actually very useful to interpret and see from a very general point of view data that is obtained

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