Question

A computer is used to generate passwords. Passwords are made up of numbers from 1–6 and lowercase letters. The computer generates passwords one character at a time. What is the probability the first character is a consonant? Enter your answer, as a decimal rounded to the nearest hundredth, in the box.

Answer 1

The answer is 0.66. I don't know how to get it do to me just doing the quiz and getting it wrong and it showing me the answer.

Answer 2

There are 21 consonant letters in the English alphabet. The number of characters used by the computer to generate the password is
`26+6=32`.

The probability of an event A is defined as

`P(A)=(number \; of\; favourable\; events)/(total\;number\;of\;events)`.

The probability the first character is a consonant is

`(21)/(32) =0.66`.