SOCR EduMaterials Activities Discrete Probability examples
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- Description: You can access the applets for the above distributions at http://www.socr.ucla.edu/htmls/SOCR_Distributions.html .
- Example 1:
Find the probability that 3 out of 8 plants will survive a frost, given that any such plant will survive a frost with ptobability of 0.30. Also, find the probability that at least 1 out of 8 will survive a frost. What is the expected value and standard deviation of the number of plants that survive the frost?
- Answer:
\( X \sim b(8,0.3) \), \( P(X=3)= {8 \choose 3} 0.8^30.7^5 \)
