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WorksheetsDeciles for ungrouped data
Total questions: 5
Worksheet time: 3mins
Which of the following is the first step before finding quartiles in a data set?
Divide the data into 4 parts
Arrange the data in ascending order
Find the mean
Subtract the smallest value from the largest
What does the first quartile (Q₁) represent?
The smallest value in the data set
The middle value of the entire data set
The value below which 25% of the data falls
The largest value in the data set
Given the data set: 5, 8, 12, 15, 18, 20, 22. What is the median (Q₂)?
12
15
18
20
In a data set arranged in ascending order, the third quartile (Q₃) is:
The value below which 25% of the data falls
The value below which 50% of the data falls
The value below which 75% of the data falls
The value below which 100% of the data falls
Which of the following data sets is properly arranged in ascending order?
10, 5, 15, 20, 25
5, 10, 15, 20, 25
25, 20, 15, 10, 5
15, 5, 25, 10, 20
