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Binomial vs. Geometric Distributions - Which command do I use?

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Posljednje ažuriranje 5 months ago
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Pitanje 1
1.

On the leeward side of the island of Oahu in the small village of Nanakuli, about 80% of the residents are of Hawai’ian ancestry (The Honolulu Advertiser). Suppose you fly to Hawai’i and visit Nanakuli. What is the P(second villager you meet is Hawai’ian)? What calculator command can be used to answer the question?

Pitanje 2
2.

On the leeward side of the island of Oahu in the small village of Nanakuli, about 80% of the residents are of Hawai’ian ancestry (The Honolulu Advertiser). Suppose you fly to Hawai’i and visit Nanakuli. What is the P(first three villagers you meet is Hawai’ian)? What calculator command can be used to answer the question?

Pitanje 3
3.

I decide to roll a fair dice until I first roll a six, and then stop. What’s the probability I get the first six on my 5th roll of the dice? What calculator command can be used to answer the question?

Pitanje 4
4.

The probability of winning a teddy bear in a funfair game of "hook-a-duck" is 0.2. If I play the game 10 times, what is the probability that I win at least 1 teddy bear? What calculator command can be used to answer the question?

Pitanje 5
5.

The probability of winning a teddy bear in a funfair game of "hook-a-duck" is 0.2. I play the game until I win a teddy bear. What is the probability that I play the game at least 7 times? What calculator command can be used to answer the question?

Pitanje 6
6.

The Los Angeles Times (Dec. 13, 1992) reported that 80% of airline passengers prefer to sleep on long flights rather than watch movies, read, etc. Consider randomly selecting 25 passengers from a particularly long flight. Find the probability that exactly 12 passengers prefer to sleep. What calculator command can be used to answer the question?

Pitanje 7
7.

The Los Angeles Times (Dec. 13, 1992) reported that 80% of airline passengers prefer to sleep on long flights rather than watch movies, read, etc. Consider randomly selecting 25 passengers from a particularly long flight. Find the probability that at least 6 passengers prefer to sleep. What calculator command can be used to answer the question?

Pitanje 8
8.

The probability of hitting a red light while driving down Broadway Avenue is 18%. What is the probability of going through three green lights before hitting a red light? What calculator command can be used to answer the question?