Math test on statistics in 8th grade.

Statistics in 4th grade is fairly simple to understand and apply. Just stay focused during class and ask your teacher any questions you may have. This will prevent you from being penalized on the math test. In addition, with this chapter, you will develop new skills that will help you progress throughout the school year. Always read the statement carefully before you start working on the exercises. This way you will have an idea about the control and what to do.

Always reread your lessons at home and especially repeat the exercises you have already done to master the course.

D.S: Statistics.

Exercise 1: (5 pts)

Here is a table showing the surface areas in km² of the different Lorraine departments.

1. Complete the frequency table
2. What is the total percentage of surface area of the Vosges and the Moselle?

Exercise 2: (10 points)

The histogram below shows the ages of the members of a swimming club:

1°) How many members does this club have? Justify.

2°) Complete the following table:

3°) What is the average age of the club members (to the nearest 0.1)? Justify.

4°) Using the previous table, construct the pie chart

representing swimmers of each age.

Exercise 3:
(5 pts)

Here is the transcript of grades obtained by a class during a test.

1°) Construct a table showing the grades and the numbers, then construct the histogram of the numbers.

2°) Calculate the average of the scores obtained.

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