Lesson Example Discussion Quiz: Class Homework |
Step-5 |
Title: Bernoulli’s distribution |
Grade: 9-a Lesson: S4-L3 |
Explanation: Hello Students, time to practice and review the steps for the problem. |
| Step | Type | Explanation | Answer |
|---|---|---|---|
1 |
Problem |
Suppose class passed with the last exam with probability 0.75. Find standard Deviation according to Bernoulli Distribution.? |
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2 |
Formula: |
The probability of passing in the exam |
p = 0.75 |
3 |
Formula: |
Finding q |
q = 1-p |
4 |
Step |
q |
1 - 0.75 = 0.25 |
5 |
Step |
Mean \$\mu\$ = p |
Mean = 0.75 |
6 |
Step |
Variance \$\sigma^2\$ = pq |
\$\sigma^2\$ = 0.75(0.25) |
7 |
Step |
Variance |
\$\sigma^2\$ = 0.18 |
8 |
Formula: |
Standard deviation \$\sigma = \sqrt(pq)\$ |
|
9 |
Step |
\$\sigma\$ |
\$(\sqrt(0.75)(0.25))\$ = \$\sqrt(0.18)\$ |
10 |
Step |
Standard deviation \$\sigma\$ |
0.4 |
11 |
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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