Determine whether the given procedure meets the criteria of a binomial distribut

Question

Determine whether the given procedure meets the criteria of a binomial distribution? If not, identify one requirement that is noit satisfied.

1. A survey of college students rating the food in the campus dining hall on a scale from 1-10.

2. Surveying 124 people living in the United States who use Internet service and recording their 'no' responses to the question."Do you think that internet sites should be federally regulated"?

3. Spinning a roulette wheel nine times and recording the number of times the ball lands on black.

4. Spinning the roulette wheel nine times and recording the number that the ball lands on.

Please answer only if you're sure because 3 people already answered them incorrectly. Thanks !

Explanation / Answer

Binomial conditions

1. n should be constant

2. p should be same for all

3. Only two outcomes

4. Independent events

Based on this answers are as below

1. It is not binomial as more than two outcomes.

2. This is binomial distribution. With p=0.5 , n=124

3. This is binomial distribution with p=0.5 (as red or black) and n=9

4. This is not binomial and p is not same for all

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