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[lab-intro-prob] Nuno Silva #201

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47 changes: 33 additions & 14 deletions your-code/main.ipynb
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Original file line number Diff line number Diff line change
Expand Up @@ -24,7 +24,23 @@
"outputs": [],
"source": [
"\"\"\"\n",
"your solution here\n",
"P(A U B) = P(A) + P(B) - P(A and B)\n",
"P(A U B) = 0.30 + 0.60 - 0.10\n",
"P(A U B) = 0.80\n",
"\n",
"P(A and not B) = P(A) - P(A and B) = 0.3 - 0.1 = 0.2\n",
"\n",
"P(A and (B U not B)) = P(A) = 0.3\n",
"\n",
"P(not A and not B) = 1 - P(A U B) = 1 - 0.8 = 0.2\n",
"\n",
"P(not (A and B)) = 1 - P(A and B) = 1 - 0.1 = 0.9\n",
" \n",
"1 - False\n",
"2 - True\n",
"3 - False\n",
"4 - False\n",
"5 - True\n",
"\"\"\""
]
},
Expand All @@ -49,7 +65,10 @@
"outputs": [],
"source": [
"\"\"\"\n",
"your solution here\n",
"1 -> 10/30 = 1/3\n",
"2 -> 10/29\n",
"3 -> 11/28\n",
"4 -> 12/30 = 4/10\n",
"\"\"\""
]
},
Expand All @@ -68,17 +87,6 @@
"What is the probability of rain, given the day started cloudy?"
]
},
{
"cell_type": "code",
"execution_count": null,
"metadata": {},
"outputs": [],
"source": [
"\"\"\"\n",
"your solution here\n",
"\"\"\""
]
},
{
"cell_type": "markdown",
"metadata": {},
Expand Down Expand Up @@ -116,7 +124,18 @@
"outputs": [],
"source": [
"\"\"\"\n",
"your solution here\n",
"P(dizer sim AND Ser homem) = P(dizer que sim) X P(Ser homem) -> Se forem independentes \n",
"\n",
"P(dizer que sim) = 67.5%\n",
"\n",
"P(ser homem) = 48%\n",
"\n",
"P(dizer sim AND Ser homem) = 32.4%\n",
"\n",
"Homens que disseram que sim = 324 -> Propabilidade = 324/1000 = 32.4%\n",
"\n",
"These events are independent. \n",
"\n",
"\"\"\""
]
}
Expand Down