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Volgvan
3 years ago
12

81, 27, 9, 3,...

Mathematics
1 answer:
Paladinen [302]3 years ago
7 0
It is B because its supposted to be B
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2/3 or 4/6 chance of the tv to work 1/3 or 2/6 chance it won't work.
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The Venn Diagram below models probabilities of three events, A,B, and C.
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Step-by-step explanation:

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Lina spent 1/3 of her money. She now has $20 left. How much money did she have originally
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60

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Choose all which define events A and B as independent events.
Firlakuza [10]

There are 2 answers: Choice 1, Choice 4

=======================================

Why is this? Because we use the rule

P(A & B) = P(A) * P(B)

which only works if events A and B are independent

----

For the first answer choice,

P(A) * P(B) = 0.6*0.4 = 0.24 = P(A & B)

so that matches.

The same applies to the fourth answer choice as well

P(A) * P(B) = 0.3*0.2= 0.06 = P(A & B)

----

The other answer choices don't match up.

The second answer choice has

P(A) * P(B) = 0.3*0.4 = 0.12 but that doesn't match with the 0.70 given

Similarly for the third answer choice,

P(A) * P(B) = 0.5*0.1 = 0.05 which doesn't match with the 0.60

3 0
3 years ago
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