All-Numeric Passwords. The technology consultancy Data- Genetics published the online document PIN analysis. In addition to analyzing PIN numbers, password trends were examined. Seven million all-numeric passwords were collected and yielded the following estimate of the probability distribution of the number of digits used in an all-numeric password. Digits Probability Digits Probability 4 0.492 9 0.029 5 0.092 10 0.015 6 0.178 11 0.004 7 0.073 12 0.003 8 0.113 13 0.001 a. Explain why the probabilities in the table provide only an estimate of the true probabilities.b. Estimate the probability that an all-numeric password contains at least six digits.

All-Numeric Passwords. The technology consultancy Data- Genetics published the online document PIN analysis. In addition to analyzing PIN numbers, password trends were examined. Seven million all-numeric passwords were collected and yielded the following estimate of the probability distribution of the number of digits used in an all-numeric password. Digits Probability Digits Probability 4 0.492 9 0.029 5 0.092 10 0.015 6 0.178 11 0.004 7 0.073 12 0.003 8 0.113 13 0.001 a. Explain why the probabilities in the table provide only an estimate of the true probabilities.b. Estimate the probability that an all-numeric password contains at least six digits.

College Algebra

10th Edition

ISBN:9781337282291

Author:Ron Larson

Publisher:Ron Larson

Chapter8: Sequences, Series,and Probability

Section8.7: Probability

Problem 11ECP: A manufacturer has determined that a machine averages one faulty unit for every 500 it produces....

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Digits	Probability	Digits	Probability
4	0.492	9	0.029
5	0.092	10	0.015
6	0.178	11	0.004
7	0.073	12	0.003
8	0.113	13	0.001