Decile for Ungrouped Data mathematics 10.pptx

1. DECILE FOR
UNGROUPED DATA

2. Find 𝑄1, 𝑄2, 𝑄3 of the given data:
1. 12, 10, 8, 14, 15, 17, 19,10, 7, 10, 9
2. 66, 70, 54, 50, 80, 85, 50, 90, 30, 20

3. A math teacher conducted a survey of 19 randomly
selected students in his class and obtain the following
data on their everyday expenses.
40, 30, 30 25, 20, 45, 60, 35, 40, 20, 50, 25, 35, 40,
35, 70, 60, 35, 30
What is the least expenses incurred every day? largest expenses?
 If the data arrange in ascending order and divide it into 10 equal
parts, what are the data belongs to the to the 1st , 2nd , 3rd … to
tenth part?

4. Can you determine the position of each
partitioned number?
The partition numbers are 4, 6, 8, 10, 12, 14, 16, 18, 20
These partitions represent for the decile.
Decile 1(𝐷1) = 4
Decile 2 (𝐷2) = 6

5. Suppose the given scores are the following:
2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17,
18, 19, 20, 21
How many scores are
there?
Can you determine the 𝐷1, 𝐷2, 𝐷3…,𝐷9…? How?

6. Based from the given data, determine 𝐷1,𝐷3,𝑎𝑛𝑑 𝐷9.
1. 17, 18, 19, 21, 27, 27, 30, 32, 36
2. 41, 37, 30, 25, 21, 18, 16, 16, 15, 14

7. Based from the given data, determine 𝐷1,𝐷3,𝑎𝑛𝑑 𝐷9.
1. 24, 19, 25, 34, 26, 45,
36, 38, 29
2. 10, 8, 11, 15, 18, 28,
24, 30, 29, 32