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11302遠距教學_機率2_後測

Authored by 陳 品妍

Mathematics

12th Grade

11302遠距教學_機率2_後測
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5 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

班上有30位同學,數學及格者有18位,英文及格者有21位,两科皆及格者有13位,則两科皆不及格有幾位?

4

9

12

17

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

某單選題有四個選項,且只有一個選項正確,若答對一題可得 6 分,則答錯一題時應倒扣幾分才算公平?

1.5

2

2.5

3

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

若 50 個玩具中有 4 個不良品,現在任取 10 個,則不良品個數的期望值為何?

1

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

若一群資料數值為 13、8、5、12、17、9、6,則中位數為何?

8

9

12

13

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

投擲兩顆公正骰子一次,在出現點數和為8的條件下,則其中一顆骰子出現3點的機率為多少?

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