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3 years ago

20 POINTS HELP FAST

Mathematics

2 answers:

olga nikolaevna [1]3 years ago

3 0

Answer:

the answer is 20/72 = x/480 . this is because u have to add the numbers for the first sample to find the sample size and then make a ratio to determine if the sample size increases to 480 .

Alenkinab [10]3 years ago

3 0

Answer:

its D.

Step-by-step explanation:

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Answer:

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Step-by-step explanation:

Explanation:-

Independent events:

If the occurrence of the event 'B' is not effected by the occurrence or non- occurrence of the event 'A' then the event 'B' is said to be independent of 'A'

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Given data A and B are independent events

Given data

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we know that A and B are independent events are

P(A∩B) = P(A) P(B)

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Now calculation we get

$P(B) = \frac{6}{8} = 0.75$

Final answer:-

$P(B) = \frac{6}{8} = 0.75$

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