1. Two dice are tossed. What is the probability that the total score is a prime number greater than 3?

Advanced Engineering Mathematics
10th Edition
ISBN:9780470458365
Author:Erwin Kreyszig
Publisher:Erwin Kreyszig
Chapter2: Second-order Linear Odes
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Lecture 7:
1. Two dice are tossed. What is the probability that the total score is a prime
number greater than 3?
2. A box contains 20 electric bulbs, out of which 4 are defective. Two bulbs are
chosen at random from this box. What is the probability that at least one of these
is defective?
3. Four cards are drawn from a standard deck of playing cards without replacing a
card after it is drawn. If the first 3 cards are spades, what is the probability that
the next card drawn is not a spade?
4. 4 ETS big book and 5 barrons books are arranged in a row on a shelf at random.
Find the probability that the books of the same publisher will be put together?
Transcribed Image Text:Lecture 7: 1. Two dice are tossed. What is the probability that the total score is a prime number greater than 3? 2. A box contains 20 electric bulbs, out of which 4 are defective. Two bulbs are chosen at random from this box. What is the probability that at least one of these is defective? 3. Four cards are drawn from a standard deck of playing cards without replacing a card after it is drawn. If the first 3 cards are spades, what is the probability that the next card drawn is not a spade? 4. 4 ETS big book and 5 barrons books are arranged in a row on a shelf at random. Find the probability that the books of the same publisher will be put together?
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