3)英文数学问题 请数学高手帮帮我解答 >< 不会这题 给十分 (不是要翻译 需要解答)
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3)英文数学问题 请数学高手帮帮我解答 >< 不会这题 给十分 (不是要翻译 需要解答)
以下是我不会的英文数学问题 厉害的高手 请帮我解答一下问题 拜托了
7. Dana estimates that she has a 65% chance of passing Math , an 80% chance of passing Physics , and a 50% chance of passing both.
a) what is the probability that she passes Math but not physics ?
b) what is the probability that she passes Physics but not Math ?
c) what is the probability that she passes at least one of these two subjects ?
8. twenty marbles are put in a jar. The blue marbles are numbered from 1 to 10 , and the yellow marbles , from 5 to 14. A marble is drawn at random , and its number and color recorded. Consider the following events:
A : Drawing a yellow marble
B: drawing the number 7 or 8.
Find :
a)\x05P(A) =
b)\x05P (B) =
c)\x05P (A n B ) =
d)\x05PA (B) =
e)\x05PB (A)=
f)\x05P(A U B) =
List events :
A =
B=
List events :
A =
B=
以下是我不会的英文数学问题 厉害的高手 请帮我解答一下问题 拜托了
7. Dana estimates that she has a 65% chance of passing Math , an 80% chance of passing Physics , and a 50% chance of passing both.
a) what is the probability that she passes Math but not physics ?
b) what is the probability that she passes Physics but not Math ?
c) what is the probability that she passes at least one of these two subjects ?
8. twenty marbles are put in a jar. The blue marbles are numbered from 1 to 10 , and the yellow marbles , from 5 to 14. A marble is drawn at random , and its number and color recorded. Consider the following events:
A : Drawing a yellow marble
B: drawing the number 7 or 8.
Find :
a)\x05P(A) =
b)\x05P (B) =
c)\x05P (A n B ) =
d)\x05PA (B) =
e)\x05PB (A)=
f)\x05P(A U B) =
List events :
A =
B=
List events :
A =
B=
7a 0.65 - 0.5
b 0.8-0.5
c 0.8+0.65-0.5
8a 10/20
b 4/20
c 2/20
d 2/10
e 2/4
f 12/20
再问: List events : A = B=
再答: A= Y1,...Y10 B= Y7,Y8,B7,B8
b 0.8-0.5
c 0.8+0.65-0.5
8a 10/20
b 4/20
c 2/20
d 2/10
e 2/4
f 12/20
再问: List events : A = B=
再答: A= Y1,...Y10 B= Y7,Y8,B7,B8
3)英文数学问题 请数学高手帮帮我解答 >< 不会这题 给十分 (不是要翻译 需要解答)
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