Your netID password must be between 12 and 30 characters long and can include upper case letters, lower case letters, and digits. (There are a few other characters, but we'll ignore them for now.) One way to measure how secure a password is would be to work out how long it would take to try all the possible passwords. Choose a length (between 12 and 30) and assume that a hacker could try 15 passwords/second. Calculate how long it would take to try all the passwords of that length, with reasonable units - that'll most likely be years. You'll need to use the multiplication principle and unit conversions to get there. Does it seem that this is long enough to be secure?
Contingency Table
A contingency table can be defined as the visual representation of the relationship between two or more categorical variables that can be evaluated and registered. It is a categorical version of the scatterplot, which is used to investigate the linear relationship between two variables. A contingency table is indeed a type of frequency distribution table that displays two variables at the same time.
Binomial Distribution
Binomial is an algebraic expression of the sum or the difference of two terms. Before knowing about binomial distribution, we must know about the binomial theorem.
Your netID password must be between 12 and 30 characters long and can include upper case letters, lower case letters, and digits. (There are a few other characters, but we'll ignore them for now.) One way to measure how secure a password is would be to work out how long it would take to try all the possible passwords. Choose a length (between 12 and 30) and assume that a hacker could try 15 passwords/second. Calculate how long it would take to try all the passwords of that length, with reasonable units - that'll most likely be years. You'll need to use the multiplication principle and unit conversions to get there. Does it seem that this is long enough to be secure?
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