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11302遠距教學_機率1_後測

Authored by 陳 品妍

Mathematics

12th Grade

Used 2+ times

11302遠距教學_機率1_後測
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5 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

同時擲三枚公正硬幣,出現兩正面一反面的機率是多少?

1/8

3/8

1/2

3/4

2.

MULTIPLE SELECT QUESTION

45 sec • 1 pt

從1到20的整數中,隨機選取一個數,選到質數的機率是多少?

2/5

1/2

9/20

1/4

3.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

袋子裡有5顆紅球、3顆白球和2顆黑球,小明從袋中隨機取出一個球,觀察顏色後放回。小華再從袋中隨機取出一個球,請問小明和小華都取到紅球的機率是多少?

1/2

1/4

1/5

1/10

4.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

某公司舉辦尾牙抽獎活動,獎項包含:特獎1名、頭獎3名、二獎6名,以及參加獎若干名。已知員工總人數為100人,每人限抽一次。若小明是該公司員工,他抽中特獎或頭獎的機率是多少?

1/100

3/100

1/25

1/10

5.

MULTIPLE CHOICE QUESTION

45 sec • 1 pt

擲三枚均勻硬幣一次,試求至少出現一反面的機率。

1/8

3/8

5/8

7/8

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