投擲一顆公正的骰子一次,出現的點數小於5的機率是多少?

國三機率

Quiz
•
Mathematics
•
9th Grade
•
Hard
CHIH HSU
FREE Resource
35 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
有3張數字卡,分別為2、5、7,將此3張卡任選兩張排成一個二位數,若每張卡被選到的機會相等,則排出的二位數小於60的機率是多少?
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
心語的鉛筆盒有紅、綠、藍三種不同顏色的筆各1支,振南的鉛筆盒有紅、綠、黃
三種不同顏色的筆各1支,若每支筆被選到的機會相等,則上美術課時,兩人都選到紅色筆的機率是多少?
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
有一種特殊骰子只有5個面,若5面出現的機會相等,這5個面分別標示1、2、3、
4、5,投擲此骰子兩次,則出現的點數乘積為偶數的機率是多少?
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
在九年甲班的35名同學中,只會打桌球的有11名同學,只會打羽毛球的有10名同學,只會打排球的有7名同學,其餘的同學三種球類都會玩。現在隨意從這班選出1名
同學,則下列何者的機率最小?
不會玩桌球也不會玩排球
不會玩羽毛球
會玩排球
三種球類都會玩
6.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
筒中有18支籤,分別標有1、2、……、18號,今從筒中任取一支,每支籤被抽到的
機會相等,若其號碼為2的倍數的機率為a,號碼為3的倍數的機率為b,號碼為
5的倍數的機率為c,則下列哪一個算式是正確的?
a+b+c=1
b-a=c
b×c=a
a+b=c
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
甲、乙兩人猜拳(剪刀、石頭、布),假設兩人出剪刀、石頭或布的機會相等,
則甲贏乙的機率是多少?
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