高中数学第二章统计2.2.1用样本的频率分布估计总体分布课件新人教A版必修3_图文


2.2 2.2.1 1: ,, 1901,42;, 1981,69.(1789 2009,44) : 57,61,57,57,58,57,61,54,68,51,49,64,50,48,65, 52,56,46,54,49,51,47,55,55,54,42,51,56,55,51, 54,51,60,62,43,55,56,61,52,69,64,46,54,48 : 1.44? :69-42=27. 2. ,[41.5,45.5),[45.5,49.5),[49.5,53.5),[53.5, 57.5),[57.5,61.5),[61.5,65.5),[65.5,69.5]. ? :2,7,8,16,5,4,2. 3., ? :,. , : (1): ; _______________; ; _____________. (2): _________________. _____. _1_. : (1): _____,. (2):_____, _____,_____, , . 2: 1.,,, ,?? :,, . 2.,? :, . ,: ; P66 :_____________________________. :______________________________________. :_______________________________________ _______________. 1., ( ) A. B. C. D. B., . 2. ( ) A., B., C. D.:; ; A.: A. 3., ( ) A., B., C.(a,b) D.(a,b) C., C. 4.20,0.25, ________. 200.25=5. :5 5.,________, ________. : , . : ,8 ,7 1 ,200,8. 4 x, 74x,x+4x=1, x=0.2.82000.2=40. 1.,, ?? :k= ,kZ,k, k.,. 100,512. 2.,, ? :,, . 3.,? ,? ? : . .1. 4.? :, . 5., ?? :,, . 6.,? :.. 7.? ? :; . ,. (1), ,. (2), , . ,, . (3). ,, . : : (1): ,, ,. (2): ,, . : 1(2016) ,40,( :cm): 171 163 163 166 166 168 168 160 168 165 171 169 167 169 151 168 170 168 160 174 165 168 174 159 167 156 157 164 169 180 176 157 162 161 158 164 163 163 167 161 (1). (2). . (1)151cm,180cm, 180-151=29,29;4,8, : (2). ,(). ,. . : , =; ,[ ]+1=.([x] x). ,, ,. ,,,, . ,:,, /. . (2016) (:h),n .n . (1)n.(2)a=20,, . (1)n= 6 =50. 0 .1 2 (2): : : 2(1), 100., ,40 45kg ( ) A.10 B.2 C.5 D.15 (2)(2015)10 000 2014, (:)[0.3,0.9], . a= ; ,[0.5,0.9] . (1)4045kg, . (2)1,a,[0.5,0.9] ,[0.5,0.9] . (1)A.,= =0.025=0.1,0.1100=10() (2)10.20.1 +0.80.1+1.50.1+2.00.1+2.50.1+a0.1=1, a=3,[0.5,0.9] 0.20.1+0.80.1+2.00.1+30.1=0.6, [0.5,0.9]0.6 10 000=6 000. :3 6 000 1.()(1), 50kg? ,50kg 0.065+0.025=0.4,0.4100=40(). 2.()(1), ?? ,45kg 50kg, 4 5 5 0 =47.5kg, 2 42.50.1+47.50.5+52.50.3+ 57.50.1=49.5(kg). 1. (1) =. (2) =, ,=. = 2. (1): .() . (2): ,, : =; =. (3):, . (2016)200 (:), ,[17.5,30], [17.5,20),[20,22.5),[22.5,25), [25,27.5),[27.5,30].,200 22.5 ( ) A.56 B.60 C.120 D.140. D., 22.52.5(0.16+0.08+ 0.04)=0.7,22.5 2000.7=140. : 3 : :95,81,75,89,71,65,76,88,94,110,107; :83,86,93,99,88,103,98,114,98,79,101. , . , . . ,, 98;110, ,88,, ,, . 1. ,()() ; , ,; ,() . 2. (1): . (2): ,, ;, ,. (2016) , 10,28,31,17,23,27,18,15,26,24,20,19,36,27,14,

相关文档

高中数学第二章统计2.2.1用样本的频率分布估计总体分布(一)课件新人教A版必修3
【精品】高中数学第二章统计2.2.1用样本的频率分布估计总体分布课件新人教A版必修3
高中数学第二章统计2.2.1用样本的频率分布估计总体分布课件2新人教A必修3
高中数学第二章统计2.2.1用样本的频率分布估计总体分布课件新人教a必修3 (2)
电脑版
?/a>