对于一个一级反应,如其半衰期[img=26x25]18032eb884afceb.png[/img]在0.0100s以下即称为快速反应,此时它的速率常数k值在
A: 69.3[img=26x22]18032eb88cdb61b.png[/img]以上
B: 6.39[img=26x22]18032eb88cdb61b.png[/img]以上
C: 0.0693[img=26x22]18032eb88cdb61b.png[/img]以上
D: 6.39[img=26x22]18032eb88cdb61b.png[/img]以下
A: 69.3[img=26x22]18032eb88cdb61b.png[/img]以上
B: 6.39[img=26x22]18032eb88cdb61b.png[/img]以上
C: 0.0693[img=26x22]18032eb88cdb61b.png[/img]以上
D: 6.39[img=26x22]18032eb88cdb61b.png[/img]以下
举一反三
- 独立重复地投掷一颗均匀的骰子,直到出现6点就停止投掷,设X表示投掷骰子的次数,则X的分布列是______________. A: X123456P1/61/61/61/61/61/6 B: X123456…P1/61/61/61/61/61/6… C: X123…k…P[img=9x43]1803da13460ecf5.png[/img][img=36x43]1803da134eadb99.png[/img][img=57x43]1803da135709664.png[/img]…[img=58x43]1803da135e5a076.png[/img]… D: X123…k…P[img=9x43]1803da13671cd55.png[/img][img=36x43]1803da13703c21c.png[/img][img=57x43]1803da1378489ec.png[/img]…[img=58x43]1803da13822269c.png[/img]…
- 独立重复地投掷一颗均匀的骰子,直到出现6点就停止投掷,设X表示投掷骰子的次数,则X的分布列是______________. A: X123456P1/61/61/61/61/61/6 B: X123456…P1/61/61/61/61/61/6… C: X123…k…P[img=9x43]1803573572a7b80.png[/img][img=36x43]180357357af3976.png[/img][img=57x43]180357358399321.png[/img]…[img=58x43]180357358bf0f84.png[/img]… D: X123…k…P[img=9x43]180357359488348.png[/img][img=36x43]180357359c7d68a.png[/img][img=57x43]18035735a57969a.png[/img]…[img=58x43]18035735ae0e3f4.png[/img]…
- 独立重复地投掷一颗均匀的骰子,直到出现6点就停止投掷,设X表示投掷骰子的次数,则X的分布列是______________. A: X123456P1/61/61/61/61/61/6 B: X123456…P1/61/61/61/61/61/6… C: X123…k…P[img=9x43]1803da175d21bb3.png[/img][img=36x43]1803da176510759.png[/img][img=57x43]1803da176e34ee6.png[/img]…[img=58x43]1803da177747ce7.png[/img]… D: X123…k…P[img=9x43]1803da177fbaa74.png[/img][img=36x43]1803da17890c39f.png[/img][img=57x43]1803da1792a9c56.png[/img]…[img=58x43]1803da179bd7a28.png[/img]…
- 已知正态随机变量X,且P(X≤)=,通常用EXCEL哪个函数求得( )。[img=26x22]17a410e720162d8.jpg[/img]
- 在线性回归模型[img=15x22]17de87700e445ea.png[/img]=[img=21x27]17de8770197f2dc.png[/img]+[img=21x27]17de87702519eb8.png[/img][img=26x22]17de8770323edd6.png[/img]+[img=21x27]17de87703e49ef3.png[/img][img=26x22]17de87704995d97.png[/img]+[img=16x18]17de8770554fe6f.png[/img]中,[img=21x27]17de877060c52cc.png[/img]表示一下哪个含义 未知类型:{'options': ['在[img=26x22]17de87706c93d5e.png[/img],[img=16x18]17de877077e5fee.png[/img]保持不变条件下,[img=26x22]17de87708416b2f.png[/img]每变化一单位时[img=11x19]17de8770913084f.png[/img]的均值的变化。', '任意情况下,[img=26x22]17de87709ce9853.png[/img]每变化一单位时,[img=11x19]17de8770a8bd6e5.png[/img]的均值的变化。', '17de8770b6b0e43.png保持不变条件下,[img=26x22]17de8770c1d9e65.png[/img]每变化一单位时,[img=11x19]17de8770ce771c7.png[/img]的均值的变化。', '17de8770db0d061.png保持不变条件下,[img=26x22]17de8770e6bbd2a.png[/img]每变化一单位时,[img=11x19]17de8770f1b7240.png[/img]的均值的变化。'], 'type': 102}