人體特徵的遺傳中,有兩組不同的基因分別決定頭髮為直髮或捲髮、眼皮為單眼皮或雙眼皮,請彼此發生的機率不互相影響。附表中紀錄了班上同學人體特徵的數據,且全班的人體特徵分布符合基因發生的機率不互相影響,則班上共有多少位學生為直髮且雙眼皮?

4B_CHAPTER4&5

Quiz
•
Mathematics
•
10th - 12th Grade
•
Hard
CHE-MING LIANG
Used 3+ times
FREE Resource
12 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
10位
9位
8位
7位
6位
2.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
從1~100的正整數中隨機選取一數,在下列哪個事件發生的條件下,選到偶數的機率最小?
已知選到3的倍數
已知選到的數小於50
已知選到二位數
已知選到完全平方數
已知選到完全立方數
3.
MULTIPLE SELECT QUESTION
1 min • 1 pt
已知樣本空間S中有兩非空事件A與B且0<P(A)<1、0<P(B)<1,則下列哪些敘述正確?(複選題)
P(S)=1
若 ,則A與B是S的一組分割。
若 ,則A與B獨立
若P(A|B)=P(A),則A與B獨立
若 ,則
4.
MULTIPLE SELECT QUESTION
3 mins • 1 pt
籤筒的5支籤中1支有獎,甲、乙與丙三人依序各抽一支籤,且抽完後不放回,每支籤被抽到的機率均等,則下列哪些敘述正確?(複選題)
甲、乙都沒中獎的機率為0.6
甲、乙與丙都沒中獎的機率為0.4
已知甲沒中獎的條件下,乙中獎的機率為0.25
已知甲、乙有人中獎的條件下,甲中獎的機率比乙中獎的機率大
甲、乙與丙三人中,甲中獎的機率最大
5.
FILL IN THE BLANK QUESTION
2 mins • 1 pt
一袋中有紅球2顆,白球3顆,從袋中隨機依序連取兩球。
若取後放回,已知兩球同色的條件下,兩球都是紅球的機率為多少?
(若答案為5分之1,請填寫1/5)
6.
FILL IN THE BLANK QUESTION
2 mins • 1 pt
一袋中有紅球2顆,白球3顆,從袋中隨機依序連取兩球。
若取後不放回,已知兩球異色的條件下,第一球是紅球的機率為多少?
(若答案為5分之1,請填寫1/5)
7.
FILL IN THE BLANK QUESTION
2 mins • 1 pt
花蓮市農會販售的西瓜中,有45%來自鳳林鎮、35%來自壽豐鄉、20%來自玉里鎮。但因為上周大雨,導致鳳林西瓜的20%、壽豐西瓜的20%,以及玉里西瓜的15%不夠甜。若小麻在農會挑了一顆西瓜帶回家後,發現不夠甜,則這顆西瓜來自玉里鎮的機率是多少?
(若答案為5分之1,請填寫1/5)
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