Lesson Example Discussion Quiz: Class Homework |
Step-1 |
Title: Geometric distribution |
Grade: 9-a Lesson: S4-L6 |
Explanation: Hello Students, time to practice and review the steps for the problem. |
Lesson Steps
| Step | Type | Explanation | Answer |
|---|---|---|---|
1 |
Problem |
The literacy rate for a nation measures the proportion of people age 15 and over who can read and write. The literacy rate for women in Afghanistan is 12%. Let X = the number of Afghani women you ask until one says that she is literate.What is the probability that you ask five women before one says she is literate? |
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2 |
Clue |
Number of Afghani women you ask until one says that she is literate |
X |
3 |
Formula: |
Probability P(X=x)=\$(1-p)^(x-1) × p\$ |
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4 |
Step |
From the given data |
x=5,p=12%=0.12 |
5 |
Step |
Substitute all the values in P(x=5) |
\$(1-0.12)^(5-1) × 0.12\$ |
6 |
Step |
Simplification P(x=5) |
\$(0.88)^4 × 0.12\$ |
7 |
Step |
Simplification P(x=5) |
\$0.6 × 0.12\$ |
8 |
Step |
Probability that you ask five women before one says she is literate P(x=5) |
0.0719 |
9 |
Answer |
B |
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Tutor: Questions
| Seq | Type | Question | Audio |
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1 |
Problem |
What did you learn from this problem? |
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2 |
Clue |
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3 |
Hint |
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4 |
Step |
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5 |
Step |
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