Lesson Example Discussion Quiz: Class Homework |
Step-4 |
Title: Percentile Range |
Grade: 9-a Lesson: S2-L6 |
Explanation: Hello Students, time to practice and review the steps for the problem. |
| Step | Type | Explanation | Answer |
|---|---|---|---|
1 |
Problem |
Find the percentile of 85 score in the following test results. 95,88,70,75,83,70,66,85,91,68,76,82 |
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2 |
Formula: |
Percentile = \$"Number of values below x" / "Total number of values " \$ × 100 |
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3 |
Step |
Arrange the data in ascending order |
\$66,68,70,70,75,76,82,83,85,88,91,95\$ |
4 |
Step |
Total number of values 'N' = 11, Number of values below '85' = 8 |
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5 |
Step |
Percentile |
\$8/11\$ × 100 |
6 |
Step |
After simplification |
\$0.72 × 100 \$ ⇒ 72 |
7 |
Step |
P = 72 |
85 marks point at 72th percentile. |
8 |
Answer |
C |
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Tutor: Questions
| Seq | Type | Question | Audio |
|---|---|---|---|
1 |
Problem |
What did you learn from this problem? |
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2 |
Clue |
What did you learn from the clues? |
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3 |
Hint |
What did you learn from the Hints? |
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4 |
Step |
What did you learn from the Steps? |
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5 |
Step |
How can we improve the Steps? |
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