ผลต่างระหว่างรุ่นของ "Probstat/random word"
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Jittat (คุย | มีส่วนร่วม) |
Jittat (คุย | มีส่วนร่วม) |
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| แถว 5: | แถว 5: | ||
== Probability == | == Probability == | ||
Compute the probabilities of the following events. | Compute the probabilities of the following events. | ||
| + | |||
| + | * Pick a word with an alphabet 'a'. | ||
| + | * Pick a word witn an alphabet 'z'. | ||
| + | * Pick a word with both alphabet 'a' and alphabet 'z'. | ||
| + | * Pick a word with an alphabet 'b'. | ||
| + | * Pick a word with alphabets 'a' and 'b'. | ||
| + | * Pick a word that contains 'a' or 'b'. (Can you find this one without running a program?) | ||
| + | * Pick a word that contains 'na'. | ||
| + | * Pick a word that contains 'nal'. | ||
| + | * Pick a word that contains more than 3 vowels. | ||
== Conditional probability == | == Conditional probability == | ||
รุ่นแก้ไขเมื่อ 01:49, 21 สิงหาคม 2557
Download words.txt which is a list of common 4325 English words. (I obtain this list from [1], which took it from [2]. The original list of 5000 words contain duplicates because some word appears in many parts of speech. I also removed words with punctuation marks (e.g., o'clock).)
Random experiment: Pick one random word from the list.
Probability
Compute the probabilities of the following events.
- Pick a word with an alphabet 'a'.
- Pick a word witn an alphabet 'z'.
- Pick a word with both alphabet 'a' and alphabet 'z'.
- Pick a word with an alphabet 'b'.
- Pick a word with alphabets 'a' and 'b'.
- Pick a word that contains 'a' or 'b'. (Can you find this one without running a program?)
- Pick a word that contains 'na'.
- Pick a word that contains 'nal'.
- Pick a word that contains more than 3 vowels.
Conditional probability
Compute the conditional probabilities of the following events.
