录入2025届高二下学期校本作业-概率初步续 新题

工具v2/文本文件/新题收录列表.txt

@@ -370,6 +370,9 @@
 20240224-192835 2025届高二下学期校本作业-空间向量
 022048:022064,022066:022067,022078,022069:022071,041040:041041,022074:022077,022068,022079:022083
 
-20240224-193406 2025届高二下学期校本作业-导数
+20240224-193406  
 021365:021370,023638,021371,021373:021376,010793,022022,041042,021382,022023,021383:021387,021389,021391,022025,021388,021392:021394,041043,021396,022027,021397,022028,021401,021403,022029:022034,021410,022035:022037,021413,022038:022039,021415,022040:022041,021418,021420:021423,022042:022043,015852,021425,021428,022044:022045,041044,022046:022047,021432,021434,041045,021435,041046,021437:021438,031805
 
+20240225-213222 2025届高二下学期校本作业-概率初步续
+004572:004588,041047,004590:004595,041048,004597:004599,041049,004601:004618,019240,014818,010903,030519,030534,030517:030518,019245,030535,030538,030540,030552
+

题库0.3/Problems.json

@@ -338374,7 +338374,10 @@
             "20221121\t王伟叶"
         ],
         "same": [],
-        "related": [],
+        "related": [
+            "041048",
+            "041049"
+        ],
         "remark": "",
         "space": "",
         "unrelated": []
@@ -686772,7 +686775,9 @@
             "20230104\t王伟叶"
         ],
         "same": [],
-        "related": [],
+        "related": [
+            "041047"
+        ],
         "remark": "",
         "space": "4em",
         "unrelated": []
@@ -750916,5 +750921,71 @@
         "remark": "",
         "space": "4em",
         "unrelated": []
+    },
+    "041047": {
+        "id": "041047",
+        "content": "已知离散型随机变量 $X$ 的分布列为:\n$\\begin{pmatrix}\n0 & 1 & 2 \\\\\n0.5 & 1-2 q & q^2\\end{pmatrix}$, 则常数 $q=$\\blank{50}.",
+        "objs": [],
+        "tags": [],
+        "genre": "填空题",
+        "ans": "",
+        "solution": "",
+        "duration": -1,
+        "usages": [],
+        "origin": "2025届高二下学期校本作业-概率初步续",
+        "edit": [
+            "20240225\t蔡海鸾"
+        ],
+        "same": [],
+        "related": [
+            "030544"
+        ],
+        "remark": "",
+        "space": "",
+        "unrelated": []
+    },
+    "041048": {
+        "id": "041048",
+        "content": "已知 $X$ 的分布列为: $\\begin{pmatrix}\n-1 & 0 & 1 \\\\\n\\dfrac{1}{2}& \\dfrac{1}{3}& \\dfrac{1}{6}\n\\end{pmatrix}$, 两个随机变量 $X, Y$ 满足 $X+2Y=4$, 则 $E[X]=$\\blank{50}, $E[Y]=$\\blank{50}.",
+        "objs": [],
+        "tags": [],
+        "genre": "填空题",
+        "ans": "",
+        "solution": "",
+        "duration": -1,
+        "usages": [],
+        "origin": "2025届高二下学期校本作业-概率初步续",
+        "edit": [
+            "20240225\t蔡海鸾"
+        ],
+        "same": [],
+        "related": [
+            "012083"
+        ],
+        "remark": "",
+        "space": "",
+        "unrelated": []
+    },
+    "041049": {
+        "id": "041049",
+        "content": "已知 $X$ 的分布列为: $\\begin{pmatrix}\n-1 & 0 & 1 \\\\\n\\dfrac 12 & \\dfrac 13 & \\dfrac 16      \n\\end{pmatrix}$. \n两个随机变量 $X, Y$ 满足 $X+2Y=4$, 则 $D[X]=$\\blank{50}, $D[Y]=$\\blank{50}.",
+        "objs": [],
+        "tags": [],
+        "genre": "填空题",
+        "ans": "",
+        "solution": "",
+        "duration": -1,
+        "usages": [],
+        "origin": "2025届高二下学期校本作业-概率初步续",
+        "edit": [
+            "20240225\t蔡海鸾"
+        ],
+        "same": [],
+        "related": [
+            "012083"
+        ],
+        "remark": "",
+        "space": "",
+        "unrelated": []
     }
 }