6 Flashcards

1
Q

Binomial distribution?

A

Counting the number of successes among n independent trials where the probability of a success on each individual trial is p.

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2
Q

Conditions and questions in a binomial distribution? 4•

A

•How many trials, n?
•Trials must be independent
•Outcome of an individual trial can be classified as either a success or failure
•probability of a success p is fixed and the same for each trial

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3
Q

Bernoulli distribution is related to binomial how?

A

A binomial but only doing one trial and measuring either success or failure.

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4
Q

R can only do less than or equal to or just less than?

A

Less than or equal to?

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5
Q

R can only do greater than and equal to or only greater than?

A

Greater than

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6
Q

Geometric distribution?

A

Counts the number of trials until the first success among consecutive independent trials. Aka counts the number of failures until the first success among consecutive independent trials.

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7
Q

!!!Geometric distribution conditions and tests?

A
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8
Q

Poisson distribution (lambda)?

A

Count the number of occurrences of a given event over some interval where the rate of these occurrences over the given interval is equal to lambda.

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9
Q

!!!conditions and tests of Poisson distribution?

A
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10
Q

In discrete uniform distribution, each outcome MUST be?

A

Equally likely.

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11
Q

Geometric Distribution?

A

How many times you need to conduct a trial until you get the successive result.

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12
Q

Poisson Distribution?

A

There will be a rare event, and we want to know how many of them will happen over a certain amount of time.

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13
Q

In R, how does dbinom differ from pbinom?

A

dbinom is the probability mass function of binomial distribution, while pbinom is the cumulative distribution function of the binomial distribution.

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