Statistics: 4th grade math course to download in PDF.

Statistics in the eighth grade (4th grade) must always be well mastered. Thus, we will study in this lesson, the notion of average, the median of a statistical series and the range. In addition, the student should be able to draw a bar graph, a pie chart and a histogram, and also calculate frequencies. At the end of the chapter, the student will develop new skills and progress in math.

I. Range and median of a statistical series

Example:

Each 4th grader indicated the number of books they read in September.

Here are the results of the survey:

0;1;8;2;4;;10;0;0;1;5;0;1;13;3;4;1;2;2;1;0;8;0;2;2;3.

The study population is made up of students in grade 4B.

The character studied is the number of books read in September: it is a quantitative character.

Thetotal number of students is 25.

Definition:

The difference between the largest and smallest values of the character is called the range of a statistical series.

Example:

10 – 0 = 10, so the range of the previous statistical series is 10 pounds.

Ownership:

To calculate the median of a statistical series, we can use a table of cumulative increasing numbers.

Example:

statistical table

The first two rows of the table below are the population table for the series.

Since the total number of people is 25, the median value is the 13th value of the series when we arrange them in ascending order.

The median of this series is 2 because 2 is the smallest value in the series when arranged in ascending order.

II. The weighted average

Definition:

To calculate the weighted average of a statistical series :

we calculate the sum of the products of the numbers by the value of the character then we divide by the total number of people.

Definition of the weighted average

Example:

We can calculate the average number of books read in 4°B in September.

Averaging table

M=\frac{6\times  \,0+6\times  \,1+5\times  \,2+3\times  \,3+2\times  \,4+2\times  \,8+1\times  \,10}{25}=\frac{59}{25}=2,36.

On average, 4th graders read 2.36 books in the month of September.

Cette publication est également disponible en : Français (French) العربية (Arabic)

Télécharger puis imprimer cette fiche en PDF

Télécharger ou imprimer cette fiche «statistics: 4th grade math course to download in PDF.» au format PDF afin de pouvoir travailler en totale autonomie.


D'autres fiches dans la section 4th grade math class




Télécharger nos applications gratuites Mathématiques Web avec tous les cours,exercices corrigés.

Application Mathématiques Web sur Google Play Store.    Application Mathématiques Web sur Apple Store.    Suivez-nous sur YouTube.


D'autres articles analogues à statistics: 4th grade math course to download in PDF.


  • 97
    Trigonometry: 3rd grade math course to download in PDF.This trigonometry course on cosine, sine and tangent of an acute angle and the calculation of the measure of an angle in a right triangle in 3rd grade is very instructive. In this lesson we will see how to calculate the length of a side of a right triangle knowing…
  • 97
    Limit of functions and operations on limits: senior math course.The limits of functions are very important to master. The tables below summarize the results you need to know. These tables are valid for all three situations studied: When the variable . When the variable . When the variable where a R. But it goes without saying that, for the…
  • 96
    Equations: 3rd grade math course download PDF.A course on solving the first degreeequation with one unknown and studying problems leading to an equation is timely for student development. We will see the different properties of solving an equation. The student will need to know the definition of an equation and how to use the various properties…
Les dernières fiches mises à jour

Voici la liste des derniers cours et exercices ajoutés au site ou mis à jour et similaire à statistics: 4th grade math course to download in PDF. .

  1. Intégrales : exercices de maths en terminale corrigés en PDF.
  2. الوظائف والحدود: تمارين الرياضيات في السنة النهائية مصححة بتنسيق PDF.
  3. Functions and limits: senior math exercises corrected in PDF.
  4. Fonctions et limites : exercices de maths en terminale corrigés en PDF.
  5. الوظائف المعتادة: دورة الرياضيات في المركز الثاني للتحميل بصيغة PDF.


Inscription gratuite à Mathématiques Web. Mathématiques Web c'est 2 146 060 fiches de cours et d'exercices téléchargées.

Copyright © 2008 - 2023 Mathématiques Web Tous droits réservés | Mentions légales | Signaler une Erreur | Contact

.
Scroll to Top
Mathématiques Web

FREE
VIEW