An electronics store sells a laptop for p. During the sales period, the shopkeeper offers a 30% discount on the initial price. A few days after the end of the sales, the shopkeeper starts the «Out of All» campaign to free the warehouse from inventories and applies an additional 20% discount. to. Express the final price of the computer as a fraction of p and verify that it is greater than 50% of the initial price. b. Knowing that the final price is € 448, it determines the initial price p and the amount of the first discount applied.

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a) one student is chosen from classroom a, then a student is chosen from classroom b.  

step-by-step explanation:

independent events are ones in which the probability of one event does not affect the probability of the second event.

one student is chosen from classroom a; this does not affect the chances of choosing a student from classroom b.   this makes these independent events.

when one card is chosen from a standard deck and then set aside before a second card is chosen, the probability of the second card being chosen changes.   this makes them dependent events.

when one student is chosen from classroom a and then a second student is chosen from classroom a, the probability of choosing the second student changes.   this makes them dependent events.

when a letter is chosen from the alphabet and then a second letter is chosen, the probability of choosing the second letter changes.   this makes them dependent events.