2) In a Canadian population, 30% of people spend 4 hours or more per day on smartphone; 25% of people have difficulty falling asleep within 30 min; and 20% of people spend 4 hours or more per day on smartphone and have trouble falling asleep within 30 min. If a person is randomly selected from the population who spend less than 4 hours per day on smartphone, what is the probability this person have difficulty falling asleep within 30 min?

Q: 5 -100 12 8

A: Solve the given

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A:

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A:

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A: We can solve given problem by using G.P series.

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A:

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A: 514+16=15+742

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A:

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A:

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A:

Q: 0218 X 17 (2) 600 x 38 131 784 X 44 (47664 X 18 157146X1

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A:

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A: