Measures of Position DECILES for ungrouped data

REVIEW
Find 𝑄1, 𝑄2, 𝑄3 of the given data:
2, 10, 8, 14, 15, 17, 19,10, 7, 10, 9

Activity 1: Match Me!
Direction: Match column A to column B. Write the letter of your
answer on the space provided per number to answer the
question. _____ _____ _____ _____ _____ _____
1 3 4 5 2 3
COLUMN A COLUMN B
1. Divides the distribution into 4 equal parts C. Interquartile Range
2. Quartile formula for ungrouped data D. Quartile
3. Quartile divides the set of data into how
many equal parts.
E. Four
4. Difference of first and third quartile I. Interpolation
5. Method used to estimate values based
on what is already known
J. Qk=
𝑘(𝑛+1))
4

PREPARED BY:
BABY ANN P. MOTAR
BSED MATHEMATICS 4

Learning Objectives:
• At the end of the session, the students
should be able to:
•Illustrate the measures of position (Deciles)
•Identify the score of different deciles
•Determine the decile for ungrouped data.
•Display patience in identifying

The deciles are the nine score values that divide a distribution into ten
equal parts. It can be observed that D5 or the fifth decile is also the
median of the set of data.

FINDING DECILES OF UNGROUPED DATA
Example 1:
The following are the result of a survey made in Grade 10
classes to determine the number of learners who would want to
take Accounting and Business Management Strand.
• Compute for D3 and interpret.
• Compute for D7 and interpret.

Activity: Can you crack it?
Direction: Crack the code of a numerical lock that has 3 digit key by answering the
following problems involving decile. HINT: The code is arranged from lowest to
highest. Each code appears twice in the answers of the following problems.
1. What is N?
2. Compute for D2
3. Find
3𝑘
10
4. Find
7𝑘
10
5. Compute for D4

ACTIVITY 1: LET’S PRACTICE
• Direction: Read and answer what is being asked.
• Rome wants to donate for Brigada Eskwela. He sells
facemask and saves the profit for donation. The following
data set is a list of his profit in peso for one week: 130,
158, 180, 225, 195, 146, 250
• Find the value of the 2nd decile, 4th decile, 5th decile, 6th
decile and the 8th decile

Activity: Did you know?
Direction: Arrange the scrambled words in order to summarize the discussions
this session.

Direction: Matching Column A with Column B.(1/2 CROSSWISE)
The data below are the scores of 15 students in a Mathematics Test.
35, 32, 37, 31, 28, 33, 29, 48, 44, 43, 39, 42, 31, 46, 49

ASSIGNMENT:
Direction: Complete the puzzle by solving for the indicated decile position
of each set of data.

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Measures of Position DECILES for ungrouped data

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