鍙傝冨叕寮忥細
濡傛灉浜嬩欢
A
锛?/p>
B
浜掓枼锛岄偅涔?/p>
P
(
A
+
B
)=
P
(
A
)+
P
(
B
)
濡傛灉浜嬩欢
A
锛?/p>
B
鐩镐簰鐙珛锛岄偅涔?/p>
P
(
A
路
B
)=
P
(
A
)
路
P
(
B
)
濡傛灉浜嬩欢
A
鍦ㄤ竴娆¤瘯楠屼腑鍙戠敓鐨勬鐜囨槸
p
,
閭d箞
n
娆$嫭绔嬮噸澶嶈瘯楠屼腑浜嬩欢
A
鎭板ソ鍙戠敓
k
娆$殑姒傜巼
P
n
(
k
)=
C
k
n
p
k
(1-
p
)
n
-
k
(
k
=0,1,2,
鈥︼紝
n
)
鍙颁綋鐨勪綋绉叕寮?/p>
V=
)
(
3
1
2
2
1
1
S
S
S
S
h
飥?/p>
飥?/p>
鍏朵腑
S
1
,
S
2
鍒嗗埆琛ㄧず鍙颁綋鐨勪笂銆佷笅搴曢潰绉紝
h
琛ㄧず鍙颁綋鐨勯珮
鏌变綋鐨勪綋绉叕寮?/p>
Sh
V
飥?/p>
鍏朵腑
S
琛ㄧず鏌变綋鐨勫簳闈㈢Н锛?/p>
h
琛ㄧず鏌变綋鐨勯珮
閿ヤ綋鐨勪綋绉叕寮?/p>
Sh
V
3
1
飥?/p>
鍏朵腑
S
琛ㄧず閿ヤ綋鐨勫簳闈㈢Н锛?/p>
h
琛ㄧず閿ヤ綋鐨勯珮
鐞冪殑琛ㄩ潰绉叕寮?/p>
S
=4
蟺
R
2
鐞冪殑浣撶Н鍏紡
3
蟺
3
4
R
V
飥?/p>
鍏朵腑
R
琛ㄧず鐞冪殑鍗婂緞
娴欐睙鐪?/p>
2014
灞婇珮涓夐珮鑰冩ā鎷熷啿鍒哄嵎锛堟彁浼樺嵎锛?/p>
锛堝洓锛?/p>
鏁板鐞嗚瘯棰?/p>
鏈瘯棰樺嵎鍒嗛夋嫨棰樺拰闈為夋嫨棰樹袱閮ㄥ垎銆傛弧鍒?/p>
150
鍒?/p>
,
鑰冭瘯鏃堕棿
120
鍒嗛挓銆?/p>
娉ㄦ剰浜嬮」锛?/p>
1.
绛旈鍓嶏紝鑰冪敓鍔″繀灏嗚嚜宸辩殑濮撳悕銆佸噯鑰冭瘉鍙风敤榛戣壊瀛楄抗鐨勭瀛楃瑪鎴栭挗绗斿~鍐欏湪绛旈绾歌瀹氱殑浣嶇疆涓娿?/p>
2.
姣忓皬棰橀夊嚭鍚庯紝鐢?/p>
2B
閾呯瑪鎶婄瓟棰樼焊涓婂搴旈鐩殑绛旀鏍囧彿娑傞粦锛屽闇鏀瑰姩锛岀敤姗$毊鎿﹀共鍑鍚庯紝鍐嶉夋秱鍏跺畠绛?/p>
妗堟爣鍙枫備笉鑳界瓟鍦ㄨ瘯棰樺嵎涓娿?/p>
閫夋嫨棰橀儴鍒嗭紙鍏?/p>
50
鍒嗭級
涓銆侀夋嫨棰橈細鏈ぇ棰樺叡
10
灏忛锛屾瘡灏忛
5
鍒嗭紝鍏?/p>
50
鍒嗭紟鍦ㄦ瘡灏忛缁欏嚭鐨勫洓涓夐」涓紝鍙湁涓椤规槸
绗﹀悎棰樼洰瑕佹眰鐨勶紟
1
锛庡凡鐭ラ泦鍚?/p>
飦?/p>
飦?/p>
3,4,5,6
P
飥?/p>
锛?/p>
飦?/p>
飦?/p>
5,7
Q
飥?/p>
锛屼笅鍒楃粨璁烘垚绔嬬殑鏄?/p>
锛?/p>
锛?/p>
A
锛?/p>
Q
P
飪?/p>
B
锛?/p>
P
Q
P
飥?/p>
C
锛?/p>
P
Q
Q
飥?/p>
D
锛?/p>
飦?/p>
飦?/p>
5
P
Q
飥?/p>
2
锛庡凡鐭?/p>
i
鏄櫄鏁板崟浣嶏紝鑻ュ鏁?/p>
z
婊¤冻
(
)(3
)
10
z
i
i
飥?/p>
飥?/p>
飥?/p>
锛屽垯
z
飥?/p>
锛?/p>
锛?/p>
A
锛?/p>
5
B
锛?/p>
6
C
锛?/p>
10
D
锛?/p>
13
3
锛?/p>
鈥?/p>
2
(
)
4
k
k
Z
飦?
飦?/p>
飦?/p>
飥?
飥?/p>
飪?/p>
鈥濇槸鈥?/p>
cos
2
0
飦?/p>
飥?/p>
鈥濈殑
锛?/p>
锛?/p>
A
锛庡厖鍒嗕笉蹇呰鏉′欢
B
锛庡繀瑕佷笉鍏呭垎鏉′欢
C
锛庡厖瑕佹潯浠?/p>
D
锛庢棦涓嶆槸鍏呭垎鏉′欢涔熶笉鏄繀瑕佹潯浠?/p>
4
锛庡凡鐭ヤ袱鏉$洿绾?/p>
,
a
b
锛屼袱涓钩闈?/p>
,
飦?/p>
飦?/p>
锛庣粰鍑轰笅闈㈠洓涓懡棰橈細
鈶?/p>
//
,
//
//
a
b
a
b
飦?/p>
飦?/p>
飪?/p>
锛?/p>
鈶?/p>
,
,
//
a
b
飦?/p>
飦?/p>
飦?/p>
飦?/p>
飪?/p>
飦?/p>
a
b
飪?/p>
飦?/p>
锛?/p>