Statistics

Front

The sum of the percentages is always:

Back

100%

Front

15 students out of 20 succeed in Math quiz. The percentage of students who succeed is:

Back

75%

Front

Among the following characters, the qualitative one is:
- Grades of students in a Math test
- Salaries of employees
- Number of children of each family
- None of choices

Back

None of choices

Front

Among the following characters, the quantitative one is: Grades of students in a Math test, Salaries of employees, Number of children of each family, All choices

Back

All choices

Front

What is the population of a study where 200 people are surveyed about their favorite football team?

Back

200 people

Front

The grades of 5 students are: 4, 6, 6, 8 and 10. The mean grade is:

Back

6.8

Front

The scores of a student in five tests: 10; 8; 13; x and 9. Knowing that the average (mean) of these five scores is 12, find x.

Back

20

Front

During a test, the grades of students of a class are given in the following statistical table: What is the number of students of this class?

Back

20

Front

200 people are surveyed about their favorite football team. The following table represents the result of this survey.

Back

Front

During a test, the grades of students of a class are given in the following statistical table: What is the mean grade of this class?

Back

11.8