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ǰλãҳ > 东财《统计学B》在线作业题库及答案 - 百度文库

东财《统计学B》在线作业题库及答案 - 百度文库

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ҳü

0 5. ƽָۺָߵϵǣ ABCD A. 岻ֱͬ˼ͬ B. ϵͬ

C. ÷еľòͬ

D. һȨ߾бιϵ ֣4

6. ʱаֵָʽͬԷΪABC A. ʱ B. ʱ C. ƽʱ D. ֵʱ ֣4

7. ٶõĻڲͬΪCD A. ۼٶ B. ٶ C. ٶ D. ٶ ֣4

8. ֵļ㷽УABC A. B. 뷨 C. ֧ D. ֵ ֣4

ơͳѧBҵһ

һѡ⣨10⣬40֡÷֣40

1.5%ۼ۸2%Ʒ۶ A.7% B.10% D.15% :C

֣4ֵ÷֣4

2.Աһ仯ʱҲӦ֮仯֮ţ

A.ֱعϵ B.عϵ C.عϵ D.عϵ :A

֣4ֵ÷֣4 3.ͼֳƣ A.ͼ B.ɢͼ

ҳü

C.ֱͼ D.Ҷͼ :B

֣4ֵ÷֣4

4.Ȩƽֵ῿ִıֵ A. B. C.е D.ȷ :A

֣4ֵ÷֣4

5.ÿ嵥λв־ɱ־磺2000ĩijְйҵְ180ˣ򲻱־ǣ

A.ְ

B.еְ C.ҵ D.ְ :B

֣4ֵ÷֣4

6.˿Ȼʰķֲǣ A.ֲ̬ B.ƫֲ C.ƫֲ D.Uͷֲ :D

֣4ֵ÷֣4 7.ͳƵУ鵥λȷܹȫųʶӰǣ A.ص

B.ͳƱƶ C.רŵ D. :D

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8.־ͱޣ A.غ B.غ C.һغ D.϶ :B

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9.Ҫʾ֮ĹϵԲã A.״ͼ B.Ҷͼ C.ɢͼ

ҳü

D.ͼ :C

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10.üظȡλҪʹƽ50%ԭģ

A.2 B.3 C.4 D.5 :C

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ѡ⣨10⣬40֡÷֣40 1.ӰȨƽĴСذ A.λ

B.ˮƽ C. D. :BC

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2.ͳƷҪǣ A.ѡ־ B.ȷĿ C.ѡϵ D.־ :ABC

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3.񾭼úΧ()

A.ṩ׼ṩλĻ

B.ѻ̶ʱγɵлԸ C.סṩס͸ͥԱṩļͥԸ D.סԱΪסṩļͥ˷ :ABC

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4.ƽҪڣ A.еȱȹϵ B.еȲϵ

C.ֵ˻ܱʵ D.ֵΪԵ E.ֵ͵ :ACD

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5.ָӳĶΧԷΪ A.ָ

B.ָָ

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C.ָ

D.ָָ :AC

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6.ƽֵȷǣ A.ƽֵǼȨƽֵ B.־ֵƽֵ֮͵0 C.־ֵƽֵƽС

D.ƽֵȨµļȨƽֵ :ABCD

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7.¹ڵƽʹȷǣ A.ƽһΪƽıʹ

B.֪еĸ־ֵͱ־ʱԼƽ C.־嵥λҪ D.鵥λδ֪ʱԭʽбʹ :ABCD

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8.ͳָʵIJͬʱпԷΪ() A.ʱ B.ʱ C.ƽʱ D.ʱ :ABC

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9.ͨλijֱ־Է࣬ȻٴӸаԭȡһĵλһֳʽΪ()

A.ֲ B. C.ͳ D.ų :ABC

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10.ʾĴӦѭԭ򣨣 A.ô׼ȷ

B.Ͱʾ C.ǻشߵ

D.Ҫעʼ :ABCD

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ж⣨5⣬20֡÷֣20

1.Ʒƽ5%ۼ۸ƽ½5%۶䡣

A.

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ҳü 0 5. ƽָۺָߵϵǣ ABCD A. 岻ֱͬ˼ͬ B. ϵͬ C. ÷еľòͬ D. һȨ߾бιϵ ֣4 6. ʱаֵָʽͬԷΪABC A. ʱ B. ʱ C. ƽʱ D. ֵʱ ֣4 7. ٶõĻڲͬΪCD A. ۼٶ B. ٶ C. ٶ D. ٶ ֣4 8. ֵļ㷽УABC A. B. 뷨 C. ֧ D. ֵ ֣4 ơͳѧBҵһ

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