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Ch 16 Probability Models Flashcards | StudBud

Explore/Ch 16 Probability Models

Ch 16 Probability Models

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Bernoulli Trials: Geometric & Binomial Probability Models #statistics

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Questions 11

Answers

1
What is a binomial probability model?
Counts the number of trials until first success
Counts the number of successes in specified trials
2
Find the probability as a decimal.
0.25
0.75
0.23
0.34
3
What is a the 10% condition?
Bernoulli trials may be used for random sample < 10%
Sampling w/o replacement may proceed with Bernoulli Trials
Bernoulli Trials used for dependent if < 10% of population
Dependent event of any size may be used for Bernoulli Trials
4
Find the probability as a decimal.
0.32
0.21
0.25
0.00038
5
What is a geometric probability model?
Counts the number of trials until first success
Counts the number of successes in specified trials
6
What's the difference between geometpdf and geometcdf?
pdf = prob of 1st success vs cdf = prob of many successes
cdf = prob of 1st success vs pdf = prob of many successes
cdf = prob of 1st success vs pdf = prob of many successes
pdf = prob of 1st success vs cdf = prob of many successes
7
Find the probability as a decimal.
0.06554
0.9998
8
Find the probability as a decimal.
0.27
0.84
0.23
0.05
9
What are the conditions of Bernoulli Trials?
2 outcomes, independent, constant probability
2 outcomes, dependent, constant probability
3 outcomes, independent, constant probability
2 outcomes, dependent, varying probabilities
10
Find the probability as a decimal.
0.83
0.60
0.21
0.30
11
What's the difference between binompdf and binomcdf?
Has 2 things
pdf = prob of 1st success vs cdf = prob of many successes
pdf = set # for trials vs cdf = x or fewer for trials
cdf = set # for trials vs pdf = x or fewer for trials