Math Statistics

What is the MEDIAN of this data

• 95

• 90

• 100

• 40

What is the median of this dot plot?

• 5

• 33

• 32.5

• 35

Which box and whisker plot shows the largest interquartile range?

• Top plot

• Bottom plot

For the following data, choose the measure that is higher

40, 95, 88, 32, 80

• mean

• median

• mode

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

• 5

• 6.8

• 7.2

• 10

The sum of the percentages is always:

• 100%

• 50%

• None of choices

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

• 25%

• 0.75

• 75%

• None of choices

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

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, then x =

• 12

• 14

• 18

• 20

What is the number of students of this class?