Practice Problems (Junior Cert Mathematics): Quizzes
📚Quizzes
Practise the questions
12 questions from this quiz
ShowHide
Practise the questions
12 questions from this quiz
What does the mode represent in a dataset?
What does the mode represent in a dataset?
The most frequent value
Find the mode: Number of Pets (0, 1, 2, 3, 4) with Households (5, 8, 10, 6, 1)
Find the mode: Number of Pets (0, 1, 2, 3, 4) with Households (5, 8, 10, 6, 1)
2
For grouped data, how is the mode found?
For grouped data, how is the mode found?
Mid-interval of highest frequency
What does the mean represent?
What does the mean represent?
Average value
To find mean from a frequency table, what must you do before adding values?
To find mean from a frequency table, what must you do before adding values?
Multiply by frequency
What is the mid-interval value for the age group 30-40?
What is the mid-interval value for the age group 30-40?
35
For grouped data mean calculation, which values should be used?
For grouped data mean calculation, which values should be used?
Mid-interval values
What does the median represent?
What does the median represent?
The middle value
With 17 values, which position is the median?
With 17 values, which position is the median?
9th
Goals (0, 1, 2, 3, 4) with frequency (2, 4, 7, 3, 1). Cumulative frequency at 2 goals is:
Goals (0, 1, 2, 3, 4) with frequency (2, 4, 7, 3, 1). Cumulative frequency at 2 goals is:
13
For 30 students, the median position falls between which two values?
For 30 students, the median position falls between which two values?
15th and 16th
Hours 10-15 has frequency 12. If median falls here, what value represents it?
Hours 10-15 has frequency 12. If median falls here, what value represents it?
12.5