Question Help 3.1.55 The access code for a garage door consists of three digits.

Question

Question Help 3.1.55 The access code for a garage door consists of three digits. Each digit can be any number from 1 through 6, and each digit can be repeated. Complete parts (a) through (c) (a) Find the number of possible access codes (b) What is the probability of randomly selecting the correct access code on the first try? (c) What is the probability of not selecting the correct access code on the first try? (a) Find the number of possible access codes The number of different codes available is 2

Explanation / Answer

a) No of different codes = 6*6*6 = 216

b) Select Correct access code on first try = 1/216

c) Select Not Correct access code on first try = (216-1)/216

Select Not Correct access code on first try = 215/216

2) Option D is Correct because probability cannot be more than 100%

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