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Oduvanchick [21]
2 years ago
7

You know how yo make 7 different types of cookies.you have time to make any 5 of them how many different combinations of cookies

type can you make?
Mathematics
1 answer:
umka21 [38]2 years ago
4 0
I think it would be 35 combinations but I may be wrong
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Answer:

1) is not possible

2) P(A∪B) = 0.7

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Step-by-step explanation:

1) since the intersection of 2 events cannot be bigger than the smaller event then is not possible that P(A∩B)=0.5 since P(B)=0.4  . Thus the maximum possible value of P(A∩B) is 0.4

2) denoting A= getting Visa card , B= getting MasterCard the probability of getting one of the types of cards is given by

P(A∪B)= P(A)+P(B) - P(A∩B) = 0.6+0.4-0.3 = 0.7

P(A∪B) = 0.7

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4) the event C that the selected student has a visa card but not a MasterCard is given by  C=A∩B'  , where B' is the complement of B. Then

P(C)= P(A∩B') = P(A) - P(A∩B) = 0.6 - 0.3 = 0.3

the probability for the event D=a student has exactly one of the cards is

P(D)= P(A∩B') + P(A'∩B) = P(A∪B) - P(A∩B) = 0.7 - 0.3 = 0.4

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3 years ago
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Answer:

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Answer:

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S=80.5km/h

D644

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