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each individual letter of the word washington is placed on a piece of p…

Question

each individual letter of the word washington is placed on a piece of paper, and all 10 pieces of paper are placed in a hat. if one letter is selected at random from the hat, find the probability that the letter \a\ is selected.

what is the probability that the letter \a\ is selected?
\\(p(a) =\\) (type an integer or a simplified fraction.)

Explanation:

Response

<pre_analysis>
{
"quality": "clear",
"question_count": 1,
"skills_matched": [
"step_cot",
"blank_filling_formatter",
"explain_then_answer",
"quick"
],
"needs_drawing": false,
"concepts_used": [
"Theoretical Probability",
"Fraction Simplification"
],
"new_concepts": [],
"current_concepts": [
"Theoretical Probability",
"Fraction Simplification"
]
}
</pre_analysis>

<reasoning>

Count the total number of outcomes

\[
\text{Word: "Washington"} \implies \text{Letters: W, a, s, h, i, n, g, t, o, n}
\]
\[
\text{Total pieces of paper } (N) = 10
\]

Count the number of favorable outcomes

\[
\text{Favorable letter: "a"}
\]
\[
\text{Frequency of "a" in "Washington"} = 1
\]

Calculate the probability

\[
P(\text{a}) = \frac{\text{Number of favorable outcomes}}{\text{Total number of outcomes}} = \frac{1}{10}
\]
</reasoning>

<answer>
What is the probability that the letter "a" is selected?

\(P(\text{a}) =\) <blank>\(\frac{1}{10}\)</blank>
</answer>

<post_analysis>
{
"subject": "Mathematics",
"question_type": "Fill-in-the-blank",
"knowledge_point": [
"Mathematics",
"Statistics",
"Theoretical Probability"
]
}
</post_analysis>

Answer:

<pre_analysis>
{
"quality": "clear",
"question_count": 1,
"skills_matched": [
"step_cot",
"blank_filling_formatter",
"explain_then_answer",
"quick"
],
"needs_drawing": false,
"concepts_used": [
"Theoretical Probability",
"Fraction Simplification"
],
"new_concepts": [],
"current_concepts": [
"Theoretical Probability",
"Fraction Simplification"
]
}
</pre_analysis>

<reasoning>

Count the total number of outcomes

\[
\text{Word: "Washington"} \implies \text{Letters: W, a, s, h, i, n, g, t, o, n}
\]
\[
\text{Total pieces of paper } (N) = 10
\]

Count the number of favorable outcomes

\[
\text{Favorable letter: "a"}
\]
\[
\text{Frequency of "a" in "Washington"} = 1
\]

Calculate the probability

\[
P(\text{a}) = \frac{\text{Number of favorable outcomes}}{\text{Total number of outcomes}} = \frac{1}{10}
\]
</reasoning>

<answer>
What is the probability that the letter "a" is selected?

\(P(\text{a}) =\) <blank>\(\frac{1}{10}\)</blank>
</answer>

<post_analysis>
{
"subject": "Mathematics",
"question_type": "Fill-in-the-blank",
"knowledge_point": [
"Mathematics",
"Statistics",
"Theoretical Probability"
]
}
</post_analysis>